The magnetic needle of a tangent galvano...

The magnetic needle of a tangent galvanometer is deflected at an angle `30^(@)` due to a magnet. The hoeizontal component of earth's magnetic field `0.34xx10^(-4)T` is along the plane of the coil. The magnetic intensity is

`1.96xx10^(-4)T`

`1.96xx10^(-5)T`

`1.96xx10^(4)T`

`1.96xx10^(5)T`

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