Answered: 13. Find the pull on the plunger of an…

13. Find the pull on the plunger of an electromagnet when the total flux uniformly distributed is 500 µWb. The diameter of the plunger is 2.54 cm.

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Question

Show the solutions please. 13. Find the pull on the plunger of an electromagnet when the total flux uniformly distributed is 500 µWb. The diameter of the plunger is 2.54 cm. Answer. 196.31 N 14. A coil of 2000 turns surrounds a flux of 5 mWb produced by a permanent magnet. The magnet is suddenly drawn away causing the flux inside the coil to drop to 2 mWb in 0.1s. Solve the average emf induced in the coll. Answer: 60 V 15. A coil of 100 turns is linked by a flux of 20 mWb. If the flux is reversed in a time of 2 ms, calculate the average emf induced in the coil? Answer: 2000 V

Interaction between an electric field and a magnetic field.

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