1. Figure shows a circuit that contains two batteries and two resistors. Determine the total current I in the circuit. 2. R, = 180 12 V R = 200 24V
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- Figure shows a circuit that contains two batteries and two resistors. Determine the total current I in the circuit. Show your solutions and explain.
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- 1.3 Ohmmeter: In order to use the basic meter as an ohmmeter, a variable resistor and a DC voltage source, for example a battery, should be connected in series to the meter. The connection diagram is given in Fig. 3. The resistor to be measured is connected between terminals a and b. Ry max 1 mA Rm A + a Rx Figure 3. . VDC 91. Calculate the voltage across R1. 2. Calculate the current across R2. 3. Calculate the total resistance of the circuit.3. Find the readings of the ammeter and voltmeter in the circuits in Figure 3. The resistance of the voltmeter is Ry = 1 200 Q, the voltage at the battery is U = 80 V, the resistances R1= 300 Q and R2 = 480 N. Disregard the resistance of the battery and the ammeter. R1 Figure 3.
- A TV works properly under the voltage of 4V= 110 V with power P = 1560 W. Express the current I through the power P and the voltage AV. I = Calculate the working current of the TV in A. I = Express the resistance R through the voltage AV and the current I. R = |Calculate the numerical value of R in 2. R =1. Construct a truth table for the figure.2. Obtain the MINTERM expression from the truth table.3. Draw the circuit diagram for the MINTERM expressionA. What is the total resistance of the circuit in the figure?(Round off to two decimal places.) B. If E = 40 V, what is the voltage across R1?
- I. VOCABULARY If the underlined word is used incorrectly, cross it out and replace it with the correct word. 1. The rate of flow of electric charge is called resistance and it is measured with the unit joule. 2. Current is the electric potential energy per charge. It comes from the wires. The unit is the ohm. 3. Resistors in a circuit increase the flow of charge. This obstruction is called voltage. 4. Resistors dissipate mechanical energy into heat. The rate at which this occurs is called load. 5. In a series circuit each resistor has the same voltage.6. Find the load voltage V₁, the load current / L. and the current supplied by each cell in the battery in the diagram shown. Assume that all cells are identical. Neglect the cells' internal resistances. 2.2 V 2.2 V 2.2 V 2.2 V 2.2 V 2.2 V RL = 220 2.2 V 2.2 V 2.2 VWhich of the following is a unit for resistivity? A. ohm/meter B. ohm/meter2 С. ohт — тeter D. ohm – meter?
- The parallel circuit at the right depicts two resistors connected to a voltage source. The voltage source (AVet) is a 12-V source and the resistor values are 5.4 Q (R1) and 2.9 Q (R2). a. Determine the equivalent resistance of the circuit. b. Determine the current in each branch resistor. C. Determine the total current in the circuit.I. Multiple Choice. Understand the following statements carefully. Write the letter of your answer in the blank before each number. _1. Four cells each of emf E are joined in parallel to form a battery. The equivalent emf of the battery will be A. 4 E В. Е 2. Electromotive force of a battery can be defined with the formula C. E/4 D. E = 0 A. E = IR B. E = IR + 1 C. E = IR + r _3. Potential difference of a battery is 2.2 V when it is connected across a resistance of 5 Q, if suddenly D. E = IR + Ir potential difference falls to 1.8 V, its internal resistance will be В. 1.1 Q A. 10 C. 20 D. 2.10 4. If a 6 V and a 9 V source are connected series aiding, the total voltage is А. 3V 5. If a 24 V and a 6 V battery àre series opposing, the total voltage is В. 6V C. 15 V D. 9 V A. 18 V B. 24 V C. 30 V D. 20 VA 16.0-0 and a 20.0-0 resistor are connected in parallel. A difference in potential of 40.0 V is applied to the combination. a. Compute the equivalent resistance of the parallel circuit. b. What is the current in the circuit? C. How large is the current through the 16.0-17 resistor?