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A coil having 100 turns is placed in the magnetic field of 1m wb. Find the average EMF induced if the coil is moved in 0.2 seconds from the given field to a field of 0.4m wb.

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SSC JE Electrical 07 Jun 2024 Shift 3 Official Paper - 1
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  1. 0.3 volt
  2. 30 volts
  3. 3 volts
  4. 10 volts

Answer (Detailed Solution Below)

Option 1 : 0.3 volt
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Detailed Solution

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Concept

The magnitude of the induced EMF in a coil is given by:

where, N = No. of turns

ϕ = Flux in Weber

t = Time in sec

Calculation

Given, N = 100

E = 0.3 volt

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