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CBSE Class 10 Answered

With the help of nice and neat diagram describe how can you generate induced current in the circuit. 
Asked by riyamaths | 01 Jun, 2018, 08:11: PM
answered-by-expert Expert Answer
Figure shows a colil C1 connected to a galvanometer G. When the north-pole of a bar magnet is pushed towards the coil, the pointer in the galvanometer deflects, indicating the presence of electric current in the coil. The deflection lasts as long as the bar magnet is in motion. The galvanometer does not show any deflection when the magnet is held stationary. When the magnet is pulled away from the coil, the galvanometer shows deflection in the opposite direction, which indicates reversal of the current direction. Moreover, when south-pole of the bar magnet is moved towards or away from the coil, the deflections in the galvanometer are opposite to that observed with North-pole for similar movements. Further, the deflection(and hence current) is found to be larger when the magnet is pushed towards or pulled away from the coil faster. Instead, when the bar magnet is held fixed and the coil C1 is moved towards or away from the magnet, the same effects are observed. It shows that it is the relative motion between the magnet and the coil that is responsible for generation (induction) of electric current in the coil. 
Answered by Thiyagarajan K | 15 Jun, 2018, 04:17: PM

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