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Q6). A coil with 5 windings or turns, and an area of 0.0679m2 rotates in a...

Q6).

A coil with 5 windings or turns, and an area of 0.0679m2 rotates in a uniform magnetic field of magnitude 0.886T. The emf induced in the coil has the following form as a function of time :

ε(t)= ε0 sin(ωt)

ε0 = 22.3 Volts. Calculate ω in radians per second.

Q7).

The current in a long solenoid with 19 turns per meter of radius 0.8987m depends on time as follows:

Is= 38.7(Ampere/second)*t

where t is time.

A circular loop of wire of radius 0.163m is concentric around the solenoid. An electrical current of 0.00494 Amps is induced in the loop. (Solenoid can be treated as infinitely long. Note the wire loop is outside the solenoid.) Find the resistance of the loop in Ohms.

Q7A). In the previous situation, in which a current through a solenoid is increased and thereby a current is induced in a wire loop which is concentric with the solenoid. Is the induced current in the loop in the same direction as the current in the solenoid or in the opposite direction?

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genius_generous answered 2 years ago
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