17th
Apr

# Electromagnetic Induction MCQ

• 17th Apr, 2021
• 442 Followers

## Electromagnetic Induction MCQ Test

Following are mostly asked Electromagnetic induction MCQ test that are designed for professionals like you to crack you interviews. You can take this Electromagnetic induction online test before appearing to you real interview. This Electromagnetic induction quiz there are around 30+ multiple choice questions on Electromagnetic induction with four options.

### 1) The magnitude of the induced e.m.f. in a conductor depends on the

• A. Amount of flux cut
• B. Amount of flux linkages
• C. Rate of change of flux-linkages
• D. Flux density of the magnetic field

• A. 50 V
• B. 25 V
• C. 15 V
• D. 10 V

• A. 5 H
• B. 10 H
• C. 5 mH
• D. 10 mH

### 4) The coefficient of coupling between two air core coils depends on

• A. Mutual inductance between two coils only
• B. Self-inductance of two coils only
• C. Mutual inductance and self inductance of two coils
• D. None of the above

### 5) A crack in the magnetic path of an inductor will result in

• A. Zero inductance
• B. Reduced inductance
• C. Increased inductance
• D. Unchanged inductance

### 6) Which of the following is not a unit of inductance?

• A. Volt second per ampere
• B. Henry
• C. Coulomb/volt ampere
• D. All of the above

### 7) Air-core coils are practically free from

• A. Eddy current losses
• B. Hysteresis losses
• C. Both (A) and (B)
• D. None of the above

• A. 48 mH
• B. 24 mH
• C. 3 mH
• D. 12 mH

### 9) If a negative charge is absent corresponding to Faraday’s experiment of concentric spheres, then where do the flux lines show termination?

• A. At unity
• B. At infinity
• C. At zero

### 10) During the movement of a charge, potential energy undergoes _________

• A. Reflection
• C. Compression
• D. Expansion

### 11) The phenomenon of work done while moving a point charge in presence of an electric field is independent of _______

• A. Path
• B. Force
• C. Position
• D. All of the above

### 12) Work done becomes zero, if the selected path is located in _______ direction to electric field intensity (E)

• A. Parallel
• C. Opposite
• D. Perpendicular

### 13) If the motion of charge (Q) is against the electric field with an additional requirement of external force, then what would be the nature of work done?

• A. Positive
• B. Infinity
• C. Null (zero)
• D. Negative

### 14) What does the constant ‘μ’ indicate, while specifying the relation between magnetic flux density (B) and magnetic field intensity (H)?

• A. Permittivity
• B. Persistivity
• C. Permeability
• D. Permissibility

### 15) Which conceptual notion introduced by Maxwell, indicates the generation of magnetic field in an empty free space?

• A. Velocity Vector current
• B. Acceleration current
• C. Velocity Vector current
• D. Displacement current

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