A. A coil has 500 turns in which a current rises from 0 to 0.25A in 0.1s. As the current rises linearly, it produces a flux of 2.5µWb. Calculate the induced emf in the coil. B. A magnetic coil produces 100,000 maxwells with 2,000 turns and with a current of 2 amperes. The current is cut off and flux collapses in 10ms. Determine the voltage across the coil. C. A long solenoid has 500 turns. When a current of 2 A is passed through it, the resulting magnetic flux linked with each turn of the solenoid is 4mWb. find self-inductance.
A. A coil has 500 turns in which a current rises from 0 to 0.25A in 0.1s. As the current rises linearly, it produces a flux of 2.5µWb. Calculate the induced emf in the coil. B. A magnetic coil produces 100,000 maxwells with 2,000 turns and with a current of 2 amperes. The current is cut off and flux collapses in 10ms. Determine the voltage across the coil. C. A long solenoid has 500 turns. When a current of 2 A is passed through it, the resulting magnetic flux linked with each turn of the solenoid is 4mWb. find self-inductance.
Introductory Circuit Analysis (13th Edition)
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Transcribed Image Text:A. A coil has 500 turns in which a current rises from 0 to 0.25A in 0.1s. As the current rises linearly, it
produces a flux of 2.5µWb. Calculate the induced emf in the coil.
B. A magnetic coil produces 100,000 maxwells with 2,000 turns and with a current of 2 amperes. The
current is cut off and flux collapses in 10ms. Determine the voltage across the coil.
C. A long solenoid has 500 turns. When a current of 2 A is passed through it, the resulting magnetic flux
linked with each turn of the solenoid is 4mWb. find self-inductance.
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