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QJEEM20Phe512: JEE Main 2020 Physics - Class 12 JEEM20Phe512 Solution: At time t = 0 magnetic field of 1000 Gauss is passing…
At time t = 0 magnetic field of 1000 Gauss is passing perpendicularly through the area defined by the closed loop shown in the figure. If the magnetic field reduces linearly to 500 Gauss, in the next 5s, then induced EMF in the loop is : 
Multiple Choice Options
- A 48 μV
- B 28 μV
- C 56 μV
- D 36 μV
Step-by-Step Verified Solution
Area of loop = ( 16 × 4 – 2 × Area of triangle) cm2
=
= 56 × 10–4 m2
Using faraday law Induced EMF
|
= 56 × 10–4
= 56 × 10–6 V = 56
=
= 56 × 10–4 m2
Using faraday law Induced EMF
|
= 56 × 10–4
= 56 × 10–6 V = 56