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A current of 2.0 A flows through a flashlight bulb when it is connected across the terminals of a 5 V battery. What is the energy dissipated by this bulb during 1 hour of continuous working?*
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A current of 2.0 A flows through a flashlight bulb when it is connected

across the terminals of a 5 V battery. What is the energy dissipated by this
bulb during 1 hour of continuous working?*

User Chinmoy
by
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1 Answer

1 vote
  • V=5V
  • I=2A
  • t=1h

Using Joules law


\\ \sf\Rrightarrow H=VIt


\\ \sf\Rrightarrow H=5(2)(1)


\\ \sf\Rrightarrow H=10Kwh

User Box
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