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If R1 = 2R2 = 4R3 = 8R4 = 16R5, find the...

If `R_1 = 2R_2 = 4R_3 = 8R_4 = 16R_5`, find the resistance in which maximum heat is generated, if key K is closed:

A

`R_1`

B

`R_2`

C

`R_4`

D

`R_5`

Text Solution

Verified by Experts

The correct Answer is:
D
d. All resistances are in parallel. The potential difference across each resistance is same.
`DeltaH = I^2Rt = (V^2t)/R`
`DeltaH prop 1/R`
`R_5` is the smallest and generates maximum heat.
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