Electrical Engineering - Magnetism and Electromagnetism

Why Electrical Engineering Magnetism and Electromagnetism?

In this section you can learn and practice Electrical Engineering Questions based on "Magnetism and Electromagnetism" and improve your skills in order to face the interview, competitive examination and various entrance test (CAT, GATE, GRE, MAT, Bank Exam, Railway Exam etc.) with full confidence.

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How to solve Electrical Engineering Magnetism and Electromagnetism problems?

You can easily solve all kind of Electrical Engineering questions based on Magnetism and Electromagnetism by practicing the objective type exercises given below, also get shortcut methods to solve Electrical Engineering Magnetism and Electromagnetism problems.

Exercise :: Magnetism and Electromagnetism - General Questions

1. 

When the speed at which a conductor is moved through a magnetic field is increased, the induced voltage

A. increases
B. decreases
C. remains constant
D. reaches zero

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

2. 

The induced voltage across a coil with 250 turns that is located in a magnetic field that is changing at a rate of 8 Wb/s is

A. 1,000 V
B. 2,000 V
C. 31.25 V
D. 3,125 V

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

3. 

For a given wirewound core, an increase in current through the coil

A. reverses the flux lines
B. decreases the flux density
C. increases the flux density
D. causes no change in flux density

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

4. 

If the cross-sectional area of a magnetic field increases, but the flux remains the same, the flux density

A. increases
B. decreases
C. remains the same
D. doubles

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

5. 

When the current through the coil of an electromagnet reverses, the

A. direction of the magnetic field reverses
B. direction of the magnetic field remains unchanged
C. magnetic field expands
D. magnetic field collapses

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.