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A circular coil opf 500 turns of wire ha...

A circular coil opf `500` turns of wire has an enclosed area of `0.1 m^(2)` per turn. It is kept perpendicular to a magnetic field of induction `0.2 T` and rotated by `180^(@)` about a diameter perpendicular to the field in `0.1` sec. how much charge will pass when the coil is connected to a gavanometer with a combined resistance of `50 ohms`

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`q = (phi_(i)-phi_(f))/(R ) = (NBA-(-NBA))/(R ) = (2NBA)/(R )`
`q = (2 xx 500 xx 0.2 xx 0.1)/(50) = 0.4C`
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