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QNEET-2022-Ph-540: NEET 2022 Physics - Class 12 NEET-2022-Ph-540 Solution: The magnetic flux linked to a circular coil of radius R is \( = …
The magnetic flux linked to a circular coil of radius R is The magnitude of induced emf in the coil at t = 5 s is 192 V 108 V 197 V 150 V
Multiple Choice Options
- A 192 V
- B 108 V
- C 197 V
- D 150 V
Step-by-Step Verified Solution
Given magnetic flux is
_ = 2 t 3 + 4 t 2 + 2 t + 5
Induced emf is given by
_ = _ d _ d t = _ d d t ( 2 t 3 + 4 t 2 + 2 t + 5 )
| _ | = 6 t 2 + 8 t + 2
At t = 5 s,
| _ | = 6 _ 25 + 8 _ 5 + 2
= 150 + 40 + 2
= 192 V