Calculate the rate at which energy is used up in the circ...
Calculate the rate at which energy is used up in the circuit illustrated by the diagram
A.
0 W
B.
2 W
C.
4 W
D.
8 W
E.
16 W
Correct answer is C
\(R = \frac{R_1 X R_2}{R_1 + R_2}\)
= 1
\(E = I^2R = 2^2 x 1 =4W\)