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A tangent galvanometer propertly adjuste...

A tangent galvanometer propertly adjusted gives a deflection of `30^(@)` when a certain current is passed through it. When the current is changed, then it gives a deflection of `45^(@)`. The ratio of the currents in the two cases is

A

`2:3`

B

`1:sqrt(2)`

C

`1:sqrt(3)`

D

`sqrt(3):1`

Text Solution

Verified by Experts

The correct Answer is:
3
`(I_(1))/(I_(2))=(tan theta_(1))/(tan theta_(2))`
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