A long solenoid of diameter 0.1 m has 2x...

A long solenoid of diameter 0.1 m has `2xx10^(4)` turns per metre.At the centre of the solenoid ,a coil of 100 turns and radius 0.1 m is placed with its axis coinciding with the solenoid axis. The cujrrent in the solenoid reduces at a constatn rate to 0 Afrom 4 A in 0.05 s.If the resistance of the coil is `10pi^(2)omega `the total chrge flowing through th coil during this time is

`32pimuc`

`16muC`

`32muC`

`16pimuC`

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