NEETPhysicsCurrent ElectricityMCQ+4 / −1
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' ?
- A20
- B30
- C40
- D10
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