A square coil of wire, with sides of 1.80 cm, consisting of 25 turns and with a

Question

A square coil of wire, with sides of 1.80 cm, consisting of 25 turns and with a total resistance of 0.350 ohms has a magnetic field applied to it perpendicular to the plane of the coil. A. If the field changes uniformly from 0.00 T to 0.500 T in 0.800s, what is the induced emf in coil while the field is changing?
B. Find the magnitude and direction of the induced current A square coil of wire, with sides of 1.80 cm, consisting of 25 turns and with a total resistance of 0.350 ohms has a magnetic field applied to it perpendicular to the plane of the coil. A. If the field changes uniformly from 0.00 T to 0.500 T in 0.800s, what is the induced emf in coil while the field is changing?
B. Find the magnitude and direction of the induced current A. If the field changes uniformly from 0.00 T to 0.500 T in 0.800s, what is the induced emf in coil while the field is changing?
B. Find the magnitude and direction of the induced current

Explanation / Answer

A) Induced EMF = N[d(flux)/dt] = NA(dB/dt) = 25*0.018^2*(0.5/0.8) = 0.0050625 V

B) Induced current = I = EMF/R = 0.0050625/0.35 = 0.0145 A

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