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heat can flow from a body at low temperature to a body at
higher temperature only when ........ is supplied from an
external source
A). Voltage B). Current C). work D). Mass
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Answer Posted / parth
the correct answer would be (d) mass.
see, when you put a hot iron rod in water, it will transfer
its heat to the water and cool down, without providing any
voltage, current or doing any work on it. the only thing
required is a sufficient amount of water. so sufficient
Mass of water is required.
| Is This Answer Correct ? | 3 Yes | 9 No |
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hai...... tis is Hemanth. jst now completed electrical engineering... i wanna to apper for ap tranco exam... plzz send me the previous q's paper link......thanx in advance.
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