The maximum power dissipated by a 100(Omega) resistor in a circuit is 4W. Calculate the voltage across the resistor
-
A.
10V -
B.
20V -
C.
25V -
D.
400V
Correct Answer: Option B
Explanation
(V^2 = PR = V = sqrt{4} times 100)
= 20V
(V^2 = PR = V = sqrt{4} times 100)
= 20V