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A cell of negligible internal resistance...

A cell of negligible internal resistance is connected to a tangent galvanometer and the deflection produced is `30^(@)`. If theree such cells are connected in series and the combination is connected to the same galvanometer, the deflection will be

A

`30^@`

B

`60^@`

C

`90^@`

D

`45^@`

Text Solution

Verified by Experts

The correct Answer is:
B
`(I_1)/(3I_1) = (tan 30^@)/(tan theta_2) `
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