A 50-Turn Circular Coil (Radius = 15 Cm)with a Total $\Omega$

question 52

Multiple Choice

A 50-turn circular coil (radius = 15 cm) with a total resistance of 4.0 $\Omega$ is placed in a uniform magnetic field directed perpendicularly to the plane of the coil.The magnitude of this field varies with time according to B = A sin ( $\alpha$ t) ,where A = 80 $\mu$ T and $\alpha$ = 50 $\pi$ rad/s.What is the magnitude of the current induced in the coil at t = 20 ms?

• A)11 mA
• B)18 mA
• C)14 mA
• D)22 mA
• E)zero

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The specific part of a component, such as a brake pad or clutch disc, that comes into contact with another component to generate friction.

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The central part of a wheel where it attaches to the axle, or in a broader sense, a focal point or center of activity.