Two concentric circular coils, C1 and C2, are placed in the XY plane. C1 has 500 turns, and a radius of 1 cm. C2 has 200 turns and radius current 20 cm. C2 carries a time dependent current I(t)=(5t2−2t+3) A where t is in s. The emf induced in C1 (in mV), at the instant t=1 s is 4x. The value of x is

Two concentric circular coils, C1 and C2, are placed in the XY plane.

1.	Two concentric circular coils, C1 and C2, are placed in the XY plane. C1 has 500 turns, and a radius of 1 cm. C2 has 200 turns and radius current 20 cm. C2 carries a time dependent current I(t)=(5t2−2t+3) A where t is in s. The emf induced in C1 (in mV), at the instant t=1 s is 4x. The value of x is
Answer» Two concentric circular coils, $C_{1}$ and $C_{2}$ , are placed in the $X Y$ plane. $C_{1}$ has $500$ turns, and a radius of $1 cm$ . $C_{2}$ has $200$ turns and radius current $20 cm$ . $C_{2}$ carries a time dependent current $I (t) = (5 t^{2} - 2 t + 3) A$ where $t$ is in $s$ . The emf induced in $C_{1}$ (in $mV$ ), at the instant $t = 1 s$ is $\frac{4}{x}$ . The value of $x$ is

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