objectives on electric and magnetic properties # 14

                                    Hi friends, these are some of the multiple choice questions on electrical and magnetic properties. These are some of the basic questions which are asked in previous competitive papers check out and comment...

objectives on electric and magnetic properties #14


1) An atom or a group of atoms that carries a net electric charge.
A) Positive ion
B) Negative ion
C) Ion
D) Electron

Ans:C

2) Hysteresis refers to the b etween flux density of the material and the magnetizing force applied.
A) Leading effect
B) Ratio
C) Equality
D) Lagging effect

Ans:D

3) Hydrogen is an example of a material.
A) Paramagnetic
B) Diamagnetic
C) Ferromagnetic
D) Non- magnetic

Ans:B

4) Cobalt is an example of a material.
A) Paramagnetic
B) Diamagnetic
C) Ferromagnetic
D) Non- magnetic

Ans:C

5) The evaporation of electrons from a heated surface is called
A) Radiation
B) Convection
C) Thermionic emission
D) Conduction

Ans:C

6) Electron is a Greek word for
A) amber
B) Fire
C) Stone
D) Heat

Ans:A

7) Gases whose particles are charged are known as
A) Conductors
B) Insulators
C) Gaseous Conductors
D) Plasma

Ans:D

8) What principle states that each electron in an atom must have a different set of quantum numbers?
A) Inclusion principle
B) Exclusion principle
C) Quantum principle
D) Electron principle

Ans:B

9) The energy stored in an electrostatic field or electromagnetic field is called
A) Electromagnetic energy
B) Kinetic energy
C) Potential energy
D) Rest energy

Ans:C

10) Which of the following statements is TRUE?
A) Silicon dioxide is a good
B) The current carriers in conductors are valence electron
C) For conductors, the valence electron are strongly attracted to the nucleus
D) The valence electrons are located in the nucleus of an atom

Ans:B

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