DAE PHY 132 Chapter 10 MCQs

COMMON WITH:

DAE IN COMPUTER INFORMATION TECHNOLOGY

Chapter:10 (Electromagnetic Waves)

Question 1:

The field around a moving charge is called

Gravitational field Electric field Magnetic field Atomic field

Question 2:

The magnetic effect near the current carrying conductor was discovered by

Coulomb Faraday Ampere Hans Oersted

Question 3:

Which one of the following metals is non–magnetic substance?

Brass Cobalt Nickel Iron

Question 4:

The magnetic field at a point due to a current carrying conductor is proportional to

Thickness of the conductor Resistance of the conductor Distance from the conductor Current through conductor

Question 5:

Two lines of magnetic force

Can cross each other Always cross each other Can never cross each other None of the above

Question 6:

A changing magnetic flux produces around itself an induced.

Magnetic field Gravitational field Electromotive force Electric field

Question 7:

The electric field induced around a changing magnetic flux varies as

\(r\) \(r^{-1}\) \(r^{2}\) \(r^{3}\)

Question 8:

The electromagnetic waves travel in free space with the speed of

Sound Light Positive rays Cathode rays

Question 9:

The average temperature of earth atmosphere is

250 K 300 K 350 K 200 K

Question 10:

The minimum frequency of radio waves is

1 M Hz 5 M Hz 50 M Hz 10 M Hz

Question 11:

In electromagnetic waves, the electric and magnetic field are

Parallel Opposite Perpendicular All are correct

NOTE
If you find any mistake in them, do tell in the comment, so that it can be corrected.

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INSTRUCTOR
MUHAMMAD BIN JAMEEL
BSC ENGG. CIVIL