How much current is being supplied by the current source? What is the power absorbed by the conductor?

enter image source here

1 Answer
Feb 6, 2018

I=10A and P=50W

Explanation:

The problem is giving us the conductance of the circuit in Siemens which is the reciprocal of the resistance in Ohms:

R = 1/G = 1/(2S) = 0.5 \Omega

The constant current being supplied generates 5V across this resistance, so we can use Ohm's law to calculate the current:

I = V/R = (5V)/(0.5\Omega) = 10A

Finally the power absorbed by the conductor is given by Joule's law as:

P=I*V = 10A*5V = 50W