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Question
An electric device consumes 8640 J of energy in 30 min, while operating at 24 V. Calculate the current drawn by the device.
Numerical
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Solution
Energy = 8640 J; time = 30 min = 1800 s; voltage = 24 V
\[E = V \times I \times t\]
\[I = \frac{E}{V \times t}\]
\[= \frac{8640}{24 \times 1800}\]
\[= \frac{8640}{43200}\]
\[= 0.2 \text{ A}\]
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