A bar magnet is initially at rest inside a coil as shown. The magnet is then pulled out from the left side. 

(a) In which direction does current flow through the galvanometer as the magnet is pulled away? 

(b) How would the magnitude of the current change if two such magnets were used, held side by side with the north poles together and the
south poles together? 

(c) How would the magnitude of the current change if the two magnets were held side by side with opposite poles together instead?

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