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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))=(tan30^(@))/(tantheta_(2))`
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