The power dissipated in a resistor R, carrying a current, I, and a potential difference Vab across its terminal is, P=Vabl. The expression for P in terms of Vab and R. is OA. P= IR OB. P IR OC. V ab P=- R ODP=VanR
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- The power dissipated in a resistor R, carrying a current I and a potential difference Vab across its terminal is P-Vabl. The expression for P in terms of I and R. is gle ome P IR P= PR P = IR? P= p?R Mware orizo. ATIA HAA Microsoft Click Save and Submit to save and submit. Click Save All Answers to save all answers. Teams Save All Answers O Type here to searchIn the RC circuit shown in the figure below, an ideal battery with fem E and internal resistance r is connected to capacitor C. Switch S is initially open and the capacitor is discharged. At t=0, the switch is closed. The. Determine the charge q on the capacitor at time t. B. Find the current at section b and at time t. What is current as t goes to infinity?How long willit take a charged 80 uF capactor to lose 37%% of its initial energy when it is allowed to discharge through a 45 O resistor? a. 3.58 ms O b. 1.66 ms Oc 1.79 ms O d. 0.51 ms Oe. 0.83 ms Next page Dage Introduction to Phys102> Jump to
- If three resistors connected in series to a battery. Suppose R1 carries a current of 22.5A, R2 has a resistance of 150, and R3 dissipates 60W of power. What is the voltage across R3 and Resistance of R3 ? 1. Voltage across R3 %3D and 2. Resistance of R3 =a. How much current is drawn from the source?b. What is the terminal voltage of the battery?c. What is the total resistance?d. What is the voltage drop across each device?e. What is the current in the resistor [6-ohm]? Note: Draw another schematic showing combinations of resistance [if there is any]Solve the following: in light bulb has a resistance of 150 when lighted. How much current will flow through it when connected acro 220 V, its normal operating voltage? Draw the circuit schematic diseam>Fin 2. Find the potential difference (Em) Polisher connected wi 3. A 12 battery operates a 15 ohms digital scale for 5.2 minutes. a) Find the current flowing b) the charges erred with the given time. 4. What is the resistance of a conductor at 50° C if its resistance at 0°C is 1 ohm and the temperature coefficient of resistance of 9.8 x 10-³/°C 6. Complete the table: 5. A silver wire has a resistance of 2.3 at 0°C and a temperature coefficient of resistance of 3.75 x 10-³/°C. What is final temperature when the final resistance is 3.8 ohms. ? V, Volts Electric Circuit and Ohm's Law 8 volts 20 volts ca elecun it with current flowing at 18 ampere and a floor rice of 12 Q? 10 Volts 36 volts I, Ampere 2.8 mA 40A 130mA R, ohms 156 02 25 ΚΩ 450 ΚΩ
- connected con sist of five resis tors 7.a A circit as below. Determine the effective Tesistance in the circuit. RI RS- R2 R+ Ginen R, = sor, Rz=25Jr, R3= 30r, R¢=60r, Rs= 70r iD Wlhat is Hhe current is Hhe circuit iç the potential the resistors is 24 V? CICcross What is the potential that ccin be tapped across Rs? b.A circuit consist sisc capacitors connicted as below, detemine the effective capacitalnce. (3 G= SmF, G= Smf, G= 6mF, C4 = 6mF, Gaigg fo Cs= 8mF, C6 = 8 mF. What is the energy stored in the capacitors in ;circuit if the potential across %3D the the capacitors is 24V? C- lwo charges +3C and t 5C are placed 20Cm from in Yacuum- Wlhat magnitude of force will. their Centres they ebcert on each other, If Hhe sccond charge hes its polacity changed to negative (-sc). Inlliat would be the nature of the force ? Will there be a change in magnitude ? LPermitivity of free space a 8.8sx 10 -12The parallel circuit at the right depicts two resistors connected to a voltage source. The voltage source (AVtot) is a 12-V source and the resistor values are 7.4 Q (R,) and 3.9 Q (R2). a. Determine the equivalent resistance of the circuit. [ Select ] b. Determine the current in each branch resistor: Current in R, = [Select] Current in R, = [Select ] %3D C. Determine the total current in the circuit. Select ]a R₁ = 12 ε = 12V R₂ = 20 ww d R₂ = 30 b e g f Use Kirchhoff's Law to solve for the current, voltage, and power dissipated in each resistor. h 1. Draw this circuit and assign current direction. 2. Write an equation based on loop cefdc. 3. Write an equation based on loop adfgha. 4. Write an equation based on junction b. 5. Write the a matrix equation based on the equations you have written. 6. Use the matrix calculator to solve for the current. Take a screenshot https://www.desmos.com/matrix 7. Using the current values, solve for the voltages across each resistor. 8. The power dissipated across each resistor i is given by P; = I;V;. Calculate the power dissipated in each resistor. 9. Solve the current analytically.
- In the picture below there are 2 electromotive force with a large voltage of 12.5 V and an internal resistance of 0.75 Ohm arranged in series. Furthermore, the circuit with a series of resistance as shown in the picture. EJ & R₁=852 B R=1602 ·m R$40 R₂=1602 mmm. R₁=802 Calculate : a. The total resistance of the circuit. b. Strong current generated www.Q. Find the Current through each resistor. Also write the equations for KVL and KCL. Can you please help on how to solve such type of questions?You are measuring the current of a certain component in a circuit board and it reads negative (-) 8.77MA. What does it means? a. There is an error on the digital multimeter. b. The numerical value of the current is negative. c. There is an error in the circuit. It is short circuit. d. It indicated an inverse direction. You have switched the positive and negative terminal of the DMM.