In the circuit shown in Figure 13 if VR10V which of the foll

In the circuit shown in Figure 1-3, if V_R=10V, which of the following statements is true?

The power absorbed by element A is 75 W.

V_x=15 V

The power supplied by the dependant current source is 75 W.

The power absorbed by the independent voltage source is 75 W.

Question #2

Solution

Ans) if VR=10 V

Vx=VR-5 using KVL

Vx=10-5=5 V

Then current in the circuit is I=3*Vx=3*5=15 A

Power absorbed by element A is VR*I=10*15=150 W

so statement A is FALSE

Vx is not equal to 15 V

so statement B is FALSE

Power supplied by current source =5*15=75 W

so statement C is TRUE

Power supplied by Voltage source =5*15=75 W

power absorbed will be negative of power supplied i.e -75 W

in this circuit both current and voltage sources are supplying power

so statement D is FALSE ,it could have been true if -75 W is given when it says absorbed