A device with a resistance of 200.0 kΩ is connected to a 9.0 V battery.How much power does the device use?

Name: A device with a resistance of 200.0 kΩ is connected to a 9.0 V battery.How much power does the device use?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

The power used by the device can be calculated using the formula P = V^2 / R. Substituting the given values, P = (9.0 V)^2 / (200,000 Ω) = 0.000405 W or 0.41 mW.

A Device with a Resistance of 200