What is the function of dependent source in the circuit diagram shown below?

 

a. It delivers 256 W

b. It absorbs 256 W

c. It delivers 512 W

d. It absorbs 512 W

ANSWER: It absorbs 512 W

Explanation:

From the given network,

Power = V x I

= (2 Ix) x Ix

= 2 I2x

Since Ix = 16A

P = 2 x (16)2

= 512 W (absorption)

Hence, the total power of about 512W is absorbed in the given circuit.