JEE PHYSICS MCQ: CURRENT ELECTRICITY

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Application +4 | -1

The lengths of the three wires of copper are in the ratio of

1: 4: 8

and their masses are in the ratio of

5: 3: 1

. The ratio of their electrical resistance is

View answer and explanation

Correct option: B

3: 80: 960

Option B (

3: 80: 960

) is correct because it is the ratio of the electrical resistances calculated using the relationship between resistance, length, and mass of the wires.

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