A combination of three resistors R1, R2 and R3 in series is connected across a voltage source Vt. The voltage drop across R2 and R3 are 13 V and 29 V, respectively. If the current supplied by the source voltage is 1.5 A and the total power supplied by the source is 90 W, Calculate the following: A. The value of Vt and the voltage drop across R1. B. The equivalent resistance across the voltage source, and the values of R1, R2 and R3 C. The power dissipated by each resistor

College Physics
11th Edition
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Author:Raymond A. Serway, Chris Vuille
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1. A combination of three resistors R1, R2 and R3 in series is connected across a voltage source Vt. The voltage drop across R2 and R3 are 13 V and 29 V, respectively. If the current supplied by the source voltage is 1.5 A and the total power supplied by the source is 90 W, Calculate the following:
A. The value of Vt and the voltage drop across R1.
B. The equivalent resistance across the voltage source, and the values of R1, R2 and R3
C. The power dissipated by each resistor

2. Four resistors, R1 = 12 Ω, R2 = 15 Ω, R3 = 10 Ω and R4 = 8 Ω are connected such that the series combination of R1 and R2 is connected in parallel with the series combination of R3 and R4. The combination is then connected across a 12 V DC power supply.
A. Draw the schematic diagram and label the circuit elements.
B. Calculate the equivalent resistance of the circuit.
C. Find the total current of the circuit, the voltage across each resistor and the current through each resistor.

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