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Physical Science with Earth and Science
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Electrical Energy and Power
Worksheet
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Physical Science with Earth and Science
9.86 Electrical Energy and Power
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🔴 Hard
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A 150 W device and a 50 W device each use 300 Wh of energy. What must be different about their operating times?
A
The 150 W device runs three times as long as the 50 W device.
B
The 50 W device cannot use 300 Wh.
C
Both devices must run for the same time.
D
The 50 W device runs three times as long as the 150 W device.
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