A galvanometer is connected to the secondary coil. The galvanometer shows an instantaneous maximum deflection of $$7$$ divisions when current is started in the primary coil of the solenoid. Now if the primary coil is rotated though $$180o$$, then the new instantaneous maximum deflection will be

Question

Infinity Learn · Accepted Answer

When the coil is rotated through $$180o$$, the flux changes from Φ and −Φ. Hence change in flux isΦ−$$($$−Φ$$)=2$$Φ  Further Φ$$=Mi$$∴ Change in current $$=$$ $$2$$ iThis causes a deflection of $$14$$ units.

A galvanometer is connected to the secondary coil. The galvanometer shows an instantaneous maximum deflection of 7 divisions when current is started in the primary coil of the solenoid. Now if the primary coil is rotated though 180^o, then the new instantaneous maximum deflection will be

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A galvanometer is connected to the secondary coil. The galvanometer shows an instantaneous maximum deflection of 7 divisions when current is started in the primary coil of the solenoid. Now if the primary coil is rotated though 180o, then the new instantaneous maximum deflection will be

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A galvanometer is connected to the secondary coil. The galvanometer shows an instantaneous maximum deflection of 7 divisions when current is started in the primary coil of the solenoid. Now if the primary coil is rotated though 180^o, then the new instantaneous maximum deflection will be