12) A parallel plate ca pa cifor with cir cular radivs 0.7m rs being charged the mag nistu de of the ele ctric tield in be tween the pla tes of the capacitor increasing at a rate of 5.0 x 1012 V/m.s. Cal culate the in duced magnedre tield at a point of 0.25 m trom the axis of symme try of the ca paci tor. cT)
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