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Circuit Theorems and Conversions - Engineering

Q1:

A 470  RL is connected across a voltage source, VS, of 120 V. The source's internal resistance, RS, is 12 . What is the output voltage across the load?

A 120 V

B 0 V

C 117 V

D 12 V

ANS:C - 117 V

Output Voltage Vo = Vs*Rl/(Rs+Rl).

Here, Vo = Output Voltage.

Vs = Source Voltage.
Rl = Load Resistance.
Rs = Source Resistance.

Vo = 120*470/(12+470).

= 117 Volts.