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प्रश्न
Ten identical cells connected in series are needed to heat a wire of length one meter and radius ‘r’ by 10ºC in time ‘t’. How many cells will be required to heat the wire of length two meter of the same radius by the same temperature in time ‘t’?
पर्याय
10
20
30
40
MCQ
उत्तर
20
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Electric Currents in Conductors
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
