AP EAMCET · PHYSICS · Electromagnetic Induction
Assertion (A): It is more difficult to move a magnet into a coil with more loops
Reason (R): This is because emf induced in each current loop resists the motion of the magnet
- A Both and are true and is a correct explanation for
- B Both and are true but is not a correct explanation for
- C is true, is false
- D is false, is true
Answer & Solution
Correct Answer
(A) Both and are true and is a correct explanation for
Step-by-step Solution
Detailed explanation
Induced emf in a coil is e=-Ndϕdt Therefore, more number of turns means more emf induced and negative sign indicates the opposite nature of the magnetic field due to coil when magnet is moved into the coil. Thus, it is more difficult to move a magnet into a coil with more…
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