Question on: WAEC Physics - 2003
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
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Correct Option: B
\(V^2 = PR = V = \sqrt{4} \times 100\)
= 20V
= 20V
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