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A potential difference of 6v is used to produce a current of 5A for 200s through a ...

A potential difference of 6v is used to produce a current of 5A for 200s through a heating coil. The heat produced is
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  • A 4800 cal
  • B 6000 cal
  • C 2400J
  • D 240k cal
  • E 6000J
Correct Answer: Option E
Explanation:
Heat energy = Elect. energy = Ivt
= 5 x 6 x 200
= 6,000J

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