If a lamp has resistance of 140 Ω when it operates at 130 W,what is the applied voltage?
A)135 V
B)151 V
C)121 V
D)72.9 V
E)108 V

Name: If a lamp has resistance of 140 Ω when it operates at 130 W,what is the applied voltage? A)135 V B)151 V C)121 V D)72.9 V E)108 V
Brand: Quizplus
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Question

Quizplus · Accepted Answer

The applied voltage can be calculated using the formula V = √(P * R), where P is power and R is resistance. Substituting the given values, V = √(130 W * 140 Ω) = √18200 = 135 V.

If a Lamp Has Resistance of 140 Ω When It