Please help solve A square coil, enclosing an area with sides 5.2 cm long, is wr

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Please help solve

A square coil, enclosing an area with sides 5.2 cm long, is wrapped with 1,732 turns of wire. A uniform magnetic field perpendicular to its plane is turned on and increases to 0.17 T during an interval of 1.8 s. What average voltage is induced in the coil? Express the answer with two decimal places. A long vertical wire carries a steady 12 A current. A pair of rails are horizontal and are 0.1 m apart. A 11.3 ohm resistor connects points a and b, at the end of the rails. A bar is in contact with the rails, and is moved by an external force with a constant velocity of 0.7 m/s as shown. The bar and the rails have negligible resistance. At a given instant t1, the bar is 0.21 m from the wire, as shown. In Figure, at time t1, the induced current in mu A is: Express the answer with three decimal places.

Explanation / Answer

the emf or the voltage induced in the coil = N AdB /dt = 1.732*5.2*10^-4 *[.17/1.8]

=o.85*10^-4 V

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