4. What does your graph indicate about the relationship between crass section and resistance for constant length ? 5. Why do you think thicker wire have less resistance? 6. Why do you think longer wires have more resistance?

4. What does your graph indicate about the relationship between crass section and resistance for constant length ? 5. Why do you think thicker wire have less resistance? 6. Why do you think longer wires have more resistance?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter17: Current And Resistance

Section: Chapter Questions

Problem 17P: A potential difference of 12 V is found to produce a current of 0.40 A in a 3.2-m length of wire...

See similar textbooks

Related questions

Q: 10. What is the resistance of a circuit with 30V and 2A? 11. What is the resistance of a circuit…

A: 10 ) Using ohms law V = IR 30= 2×R R = 15 ohm

Q: 9. The below diagram shows correct way to connect an voltmeter to measure voltage flowing through…

A: A voltmeter is a device used to measure voltage or potential difference in the circuit. A voltmeter…

Q: Define the directivity. And what it depends on?

Q: 2. Draw a close circuit with the following circuit elements: battery, 4 resistors, wire, open switch

Q: 2. Explain the term internal resistance.

A: As we know resistance is a property of material which opposes the flow of current in a wire.

Q: A copper transmission cable 34 km long and 19.5 cm in diameter carries a current of 11 A. How much…

A: Length, L=34 km = 34×103 m Current, I=11 A ρ=1.72×10-8 Time, t =9 hours = 9×60×60 =32400 s…

Q: 5. What is the total circuit resistance when resistive elements of 5, 10, 15, and 20 connected in…

A: Given:- R1=5 ΩR2= 10 ΩR3=15 ΩR4= 20 Ω The current in the circuit I = 7 A Find:- 1) Total circuit…

Q: 4. Which wire would you want to use in the heating element of an electric kettle? Why? 5. Good…

Q: Question 4 Which of the following shows a parallel circuit? A D ww

Q: 2. In the figure below, what is the net resistance of the circuit connected to the battery? Each…

A: The resistance of each resistor is given as, R=3.2 kΩ The resistance in series can be determined as,…

Q: 1. The schematic below represents an electrical circuit containing five resistors. 32 12V Compare…

A: First find the total resistance of the circuit, 3Ω and 8Ω are connected in series, so the total…

Q: 13. What is the resistance of a circuit with 220V and 4A? 14. What is the resistance of a circuit…

A: 13. V = 220 V I = 4 A From ohm's law V = IR Therefore, R = V/I R = 220/4 R = 55 Ω

Q: 4. In figure D, Calculate a) the equivalent resistance of the entire circuit, b) the total current,…

Q: 5. A circuit has 10 ohms of resistance and 20 amps of current. A. How much voltage would be…

A: Given data : Resistance = R Current = i To find ;…

Q: What is voltage and what is it measured in? What is current and what is it measured in? What is…

A: Voltage is the difference in electric potential between two points. In other word it is the pressure…

Q: 2. A coil wire has a resistance of 250 at 20°C and the resistance of 25.17 at 35°C. What is its…

A: According to our guideline we have to do one question only.As the last part of the first question is…

Q: Define the term specific resistance? State and define its SI unit?

A: The expression for the specific resistance is,

Q: 1. Draw a parallel circuit of three resistors whose resistance are 42, 6N and 122, a 24V battery and…

Q: At what temperature will aluminum have a resistivity that is two times the resistivity of iron at…

Q: What is a voltmeter? How does voltmeter operate?

A: voltmeter is an intrument used to measuring potential difference between two points

Q: A 15-A fuse blows out repeatedly. Why is it dangerous toreplace this fuse with a 25-A fuse?

A: The current rating of a device is the maximum current that a fuse can withstand under normal…

Q: 1- what is the equivalent resistance of this circuit 2-what is the total current of this circuit?…

Q: 5. Refer to question number 4, find the electrical energy dissipated every day by the 20.1 million…

A: Power of per TV is P = 75 W Running time of per TV is t = 8 hr

Q: DEFINE CURRENT, RESISTANCE AND RESISTIVITY?

A: When we use electronic devices, there are many components that are very essential to know during…

Q: 6. Complete the table using the given three resistors and a power supply below with their respective…

A: In series parallel combination R2 and R3 are in parallel.and this parallel combination is in series…

Q: ship between resistance, conductivity, length of wire, and area of the wire.

A: Relationship between resistance, conductivity, length of wire, and area of the wire.

Q: 5. Assume that the ammeter in the figure below is removed and the current that flows through the…

Q: 5. Consider the following circuit: • This circuit is meant to mimic houses on a power grid. Assume…

A: Recall For series combination of resistor Rtotal=R1+R2+R3+.........Rn for parallel combination of…

Q: Giri wants to make an apparatus that can clearly show whether a material is a conductor or not. The…

A: Required : The best object to be placed connecting D1 and D2.

Q: Describe the relationship between resistance, cross-sectional area and length of the wire using the…

Q: State and define SI unit of power.

Q: 2. What is the voltage in an electric circuit with a current of 20 A and a resistance of 6 Q?

Q: 14.) The relationship between voltage, resistance, and current can be explained by Ohm's law. For…

Q: How is a fuse put in an electric circuit? State the purpose of using a fuse in a circuit?

A: In order to protect an electric circuit from excessive electric current, fuse is an electrical…

Q: What is the difference between series and parallel circuits? Specify in words and algebraic formula,…

A: in series circuit current will be same and voltage is divided whereas in parallel circuit voltage is…

Q: Define Direct current and give some examples of it

A: Direct current is the unidirectional flow of an electric charge. Direct current may flow through…

Q: 1. Determine the current, total resistance and voltage drop across each resistance based on the…

A: Given:- Find:- The current and Total resistance and the voltage drop across each resistance are…

Q: Briefly describe the difference between charging by friction and temporarily charging by induction.

Q: 1. Calculate the currents circulating through the branches of the circuit shown in the figure below.

Q: If a battery acts like an electron pump and wires act like electron pipes, what does the word…

A: This question can be easily solved by cleaning the basic concepts of current, voltage and…

Q: 7. Which of the forms below quantify electrical power? Check any that apply. OP=VIR OP = VI OP= OP…

A: We need to tell which of the given terms quantify electrical power.

Q: 1. Determine the current, total resistance and voltage drop across each resistance based on the…

Q: 4. A conductor is? a. material that current can pass through c. material that current cannot pass…

A: Introduction: A conductor is a material that allows the flowing of charge from one end to another…

Q: Explain what electrical resistance is, in a simple way.

A: According to Ohm's law V=IR Here V is potential difference between two ends of a conductor. I is the…

Q: Define the Applications of Conductors:

A: Applications of Conductors

Question

100%

4. What does your graph indicate about the relationship between crass section
and resistance for constant length ?
5. Why do you think thicker wire have less resistance?
6. Why do you think longer wires have more resistance?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

What is the resistance of a 20.0-m-long piece of 12-gauge copper wire having a 2.053-mm diameter?
Consider the circuits shown below, (a) What is the current through each resistor in part (a)? (b) What is the current through each resistor in part (b)? (c) What is the power dissipated or consumed by each circuit? (d) What is the power supplied to each circuit?
A potential difference of 12 V is found to produce a current of 0.40 A in a 3.2-m length of wire with a uniform radius of 0.40 cm. What is (a) the resistance of the wire? (b) The resistivity of the wire?
1. Two resistors with resistance values of 4.5 N and 2.3 Q are connected in series or parallel across a 30 V potential difference to a light bulb. a. Calculate the current delivered through the light bulb in the two cases. b. Draw the circuit connection that will achieve the brightest light bulb. 2. Explain the term internal resistance. 3. State how you agree or disagree with the following statement. A good circuit cannot have internal resistance.
0.05 0.04 0.03 0.02 0.01 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 Current Voltage
1. Question 1: a. Draw a simple circuit diagram with a battery and a light bulb and how you can simultaneously use a voltmeter to measure the voltage drop across the resistor and use an ammeter to measure the current through the resistor. Label both circuit elements along with the current using the notation from Figures 1 and 2. b. If the battery voltage is 2V and the light bulb resistance is 100, what is the current in this circuit?
1.How could the elements be arranged to create a circuit with the minimum electrical resistance (to make the battery use as much energy as possible?) 2.How could the elements be arranged to create a circuit with the maximum electrical resistance (to keep the battery from using any energy?) 3.a.Which object do you think should be selected to create circuits with more resistance? b.What do you think is the relationship between the length of an object and its resistance?
3. The resistance of a copper wire with circular cross section of radius a and length L is R. If we melt this wire and reshape it into a wire with square cross section of side a, what would be the resistance of the new wire? Present your answer symbolically.
3. What will be the resistance of a copper wire that has a radius of 2 cm and length of 100 cm? The resistivity of the copper wire is 1.7x10^(-8) ohm.meter? a. 400 b. 500 c. 600 d. NONE OF THE CHOICES 4. Calculate the temperature of a wire if its resistance is increase to 200 ohm from 150 ohm at 25 degree Celsius. The temperature coefficient of the wire is 0.0225 per degree Celsius. a. 46.28 b. 26.48 c. 84.26 d. NONE OF THE CHOICES 5. Find the current rating of a defibrillator that can pass electric charge at 200 mA at 0.127 seconds. Calculate also the number of electrons on that particular time. a. 2.57 A and 125 electron b. 5.57 A and 1250 electron c. 7.57 A and 12500 electron d. NONE OF THE CHOICES Please don't write in a paper. I can't understand handwritten well.
23. Answer the following questions about total resistance in series and parallel circuits. a. What is the total resistance of a 30 2 resistor and a 10 2 resistor in series? b. What is the total resistance of a 30 resistor and a 102 resistor in parallel? R=(1/R+1/R+..^-1 MacBook Pr
1. A current of 10 mA passing through the human body causes sustained muscular contraction. For voltage of 220 V, how much electrical resistance does the body have? 2. Three resistors, 3.0 ohms, 5.0 ohms, and 4.0 ohms, are connected in series across a 9.0 V battery. What is the current in the circuit? 3. What is the total resistance of a 6.0- V batter connected to parallel circuit with three resistors, 3.0 ohms, 12 ohms and 4.0 ohms?
three light bulbs with an internal resistance of 1ohm each are wired first in series and then in parallel. each time they are connected to a 12v battery. which of teh following statement is true a. the equivalent resistance of the circuit will be greater when they are wired in parallel. b. the current through each light bulb will be greater when they are wired in parallel c. the voltage drop across each resistor will be greater when they are wired in series d. the light bulb will burn brighter when they are wired in series