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kumpel [21]
8 months ago
12

A 500-turn coil with an average radius of 0.06 m is placed in a uniform magnetic field so that o=40 degrees. The field increases

at a rate of 0.160 T/s. What is the magnitude of the resulting emf?O0.693VO0.0014VO0.905VO0.116V
Physics
1 answer:
Lena [83]8 months ago
5 0

Given:

no. of turn in coil is

n=500

radius of the coil is

r=0.06\text{ m}

rate of change of magnetic field is

\frac{dB}{dt}=0.160\text{ T/s}

coil makes an angle with the magnetic field is

\theta=40^{\circ}

Required: magnitude of the resulting emf in the coil

Explanation:

emf in the any coil is given by

\epsilon=-nA\frac{dB}{dt}\cos40^{\circ}

plugging all the values in the above relation, we get

\begin{gathered} \epsilon=500\times3.14\times(0.06\text{ m})^2\times0.160\text{ }\times0.766 \\ \epsilon=0.693\text{ V} \end{gathered}

Thus, the emf in the coil is

0.693\text{ V}

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