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[" 8.A long solenoid of diameter "0.1m" ...

[" 8.A long solenoid of diameter "0.1m" has "2times10^(4)],[" turns per meter.At the centre of solenoid,a "],[" coil of "100" turns and radius "0.01m" is placed "],[" with its axis coinciding with the solenoid "],[" axis.The current in the solenoid reduces at "],[" a constant rate to "0A" from "4A" in "0.05s" .If "],[" the resistance of the coil is "10 pi^(2)Omega," the total "],[" charge flowing through the coil during this "],[" time is: "],[" a."16 mu Cquad " b."32 mu C" c."16 pi" muC "quad " d."32 pi mu C]

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A long solenoid of diameter 0.1 m has 2 xx 10^4 turns per meter. At the centre of the solenoid, a coil of 100 turns and radius 0.01 m is placed with its axis coinciding with the solenoid axis.The current in the solenoid reduces at a constant rate to 0A from 4 A in 0.05 s. If the resistance of the coil is 10 pi^2Omega , the total charge flowing through the coil during this time is

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A long solenoid of diameter 0.1 m has 2 xx 10^(4) turns per metre. At the centre of the solenoid, a 100- turns coil of radius 0.01 m is placed with its axis coinciding with the constant rate from + 2 A to 2 A in 0.05 s . Find the total charge (in mu C ) flowing through the coil during this time when the resistance of the coil is 40 !=^(2) Omega .

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