Ten identical cells connected in series are needed to heat a wire of length one meter and radius 'r' by 10° C 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' - VgyanHub

Question:

Ten identical cells connected in series are needed to heat a wire of length one meter and radius ‘r’ by 10° C 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’

Options :

a)20
b)30
c)40
d)10

Answer :

a)20

Answer Steps :

Step:-1

Step:-2

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