SATHEE: Electro Magnetic Induction And Alternating Currents Question 330

Electro Magnetic Induction And Alternating Currents Question 330

Question: The magnet is moved towards the coil with a speed v and induced emf is e. If magnet and coil recede away from one another each moving with speed v, the induced emf in the coil will be

Options:

A) e

B) 2e

C) e/2

D) 4e

Show Answer

Answer:

Correct Answer: B

Solution:

${(\frac{d φ}{d t})}_{In first case} = e$

${(\frac{d φ}{d t})}_{relative velocity 2 v}$ =

$2 {(\frac{d φ}{d t})}_{I case} = 2 e$

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Electro Magnetic Induction And Alternating Currents Question 330

Question: The magnet is moved towards the coil with a speed v and induced emf is e. If magnet and coil recede away from one another each moving with speed v, the induced emf in the coil will be

Options:

Answer:

Solution:

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