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The emf of a standard cell is 1.5 volt a...

The emf of a standard cell is 1.5 volt and its balancing length is 7.5 m. The balancing length in meters for a 3.5 ohm resistance, through which a current of 0.2 A, flows will be

A

3.5

B

5

C

5.7

D

6.5

Text Solution

Verified by Experts

The correct Answer is:
A
`0.2xx3.5=0.2 xxlrArr l=3.5 m`
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RESONANCE-CURRENT ELECTRICITY-Exercise
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