P 2.4-3 A voltage source and a resistor are connected in parallel in the circuit shown in

Figure P 2.4-3. Elements connected in parallel have the same voltage, so v = vs in this circuit. Suppose that vs = 10 V and R = 5 Ω. Calculate the current i in the resistor and the power absorbed by the resistor.

 

Answer: i = 2 A and the resistor absorbs 20 W.

 

Figure P 2.4-3

 

Ohm’s Law provides

 

Power is obtained by

 

 

 

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This page last updated on December 28, 2018