Q.01 _______identified the magnetic field associated with electric current.
A. Faraday
B. Orsted
C. Maxwell
D. Ampere
Ans.: B
Q.02 Which of the following is the fundamental building blocks of all matter?
A. Electrons
B. Protons and Neutrons
C. Atoms
D. mass
Ans.: C
Q.03 The atoms are composed of which of the most important fundamental particles?
A. Electrons
B. Protons
C. Neutrons
D. All of the above
Ans.: D
Q.04 Which of the following statement is/are true?
A. The electrons possesses a negative charge
B. The protons possesses an equal magnitude positive charge
C. The neutrons is neutral
D. All of the above
Ans.: D
Q.05 The electrons has a charge of ______ Coulomb.
A. 1.6021x 10^-19
B. 1.6021x 10^-31
C. 1.6021x 10^-11
D. 1.6021x 10^-28
Ans.: A
Q.06 The basic unit of the charge is ____
A. Ampere
B. Coulomb
C. Ohm
D. Volt
Ans.: B
Q.07 When electrons are removed from the substance, that substance becomes ____
A. positively charged
B. negatively charged
C. neutral
D. none of the above
Ans.: A
Q.08 Which type of the following motion of free electrons in a metal does not constitute a current unless there is a net motion of the charge with time?
A. Linear motion
B. Random motion
C. Uniform motion
D. Non uniform motion
Ans.: B
Q.09 One Ampere current corresponds to the motion of ___ electrons past any cross section of a conducting path in one second.
A. 6.24x 10^-18
B. 6.24x 10^28
C. 6.24x 10^18
D. 6.24x 10^-31
Ans.: C
Q.10 Which of the following law state that energy can neither created nor destroyed.
A. Faraday’s law
B. Ampere’s law
C. Maxwel’s
D. law of conservation of energy
Ans.: D
Q.11 In batteries produces electric energy by conversion of ___
A. mechanical energy
B. solar energy
C. chemical energy
D. Thermo energy
Ans.: C
Q.12 The substance acquiring electrons from the other substance becomes a______
A. neural
B. negatively charged
C. positively charged
D. no changed
Ans.: B
Q.13 Which of the following is/ are true?
A. unlike charges attract to each other
B. like charges attract to each other
B. unlike charges repulse to each other
D. none of the above
Ans.: A
Q.14 The value of permittivity of free space is____
A. 8.854 x 10^-10 F/m
B. 8.854 x 10^-31 F/m
C. 8.854 x 10^-12 F/m
D. 8.854 x 10^-19 F/m
Ans.: C
Q.15 The force per unit charge is called
A. electric field
B. magnetic field
C. lighting phenomenon
D. all of the above
Ans.: A
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