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...
l) Under ordinary conditions, a body is considered
A) positively charged
B) neutral
C) negatively charged
D) stable
Ans:B
2) A positively charged body has
A) deficit of electrons
B) excess of neutrons
C) excess of electrons
D) deficit of protons
Ans:A
3) A negatively charge body has
A) deficit of electrons
B) excess of protons
C) excess of electrons
D) deficit of neutrons
Ans:C
4) This paper does not exhibit electricity because it contains the same number of
A) protons and electrons
B) neutrons and electrons
C) neutrons and positrons
D) atoms
Ans:A
5) What is the value of the absolute permittivity of air?
A) 8.854 𝜇F/m
B) 8.854 × 10^-12 mF/m
C) 8.854 × 10^-12 F/m
D) 8.854 × 10^-12 𝜇F/m
Ans:C
6) What is the relative permittivity of air?
A) 0
B) 1
C) 8.854 × 10^-12
D) 4𝚷× 10^-7
Ans:B
7) If two similar charges 1 coulomb each are placed l m apart in air, then the force of repulsion is
A) 8 X 10^6 N
B) 9 X 10^9 N
C) 10^6 N
D) 5 X 10^6 N
Ans:B
8) If the relative permittivity of a material is 10, then its permittivity is
A) 4𝚷 X 10^-7 F/m
B) 4𝚷 X 10^-6 F/m
C) 8.854 X 10^-11 F/m
D) 8.854 X 10^-12 F/m
Ans:C
9) The force between two charges placed a given distance apart as the relative permittivity of the medium is increased.
A) increases
B) decreases
C) remains unchanged
D) becomes infinite
Ans:B
10) What is another name for relative permittivity?
A) Dielectric strength
B) Electric intensity
C) Potential gradient
D) Dielectric Constant
Ans:D
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l) Under ordinary conditions, a body is considered
A) positively charged
B) neutral
C) negatively charged
D) stable
Ans:B
2) A positively charged body has
A) deficit of electrons
B) excess of neutrons
C) excess of electrons
D) deficit of protons
Ans:A
3) A negatively charge body has
A) deficit of electrons
B) excess of protons
C) excess of electrons
D) deficit of neutrons
Ans:C
4) This paper does not exhibit electricity because it contains the same number of
A) protons and electrons
B) neutrons and electrons
C) neutrons and positrons
D) atoms
Ans:A
5) What is the value of the absolute permittivity of air?
A) 8.854 𝜇F/m
B) 8.854 × 10^-12 mF/m
C) 8.854 × 10^-12 F/m
D) 8.854 × 10^-12 𝜇F/m
Ans:C
6) What is the relative permittivity of air?
A) 0
B) 1
C) 8.854 × 10^-12
D) 4𝚷× 10^-7
Ans:B
7) If two similar charges 1 coulomb each are placed l m apart in air, then the force of repulsion is
A) 8 X 10^6 N
B) 9 X 10^9 N
C) 10^6 N
D) 5 X 10^6 N
Ans:B
8) If the relative permittivity of a material is 10, then its permittivity is
A) 4𝚷 X 10^-7 F/m
B) 4𝚷 X 10^-6 F/m
C) 8.854 X 10^-11 F/m
D) 8.854 X 10^-12 F/m
Ans:C
9) The force between two charges placed a given distance apart as the relative permittivity of the medium is increased.
A) increases
B) decreases
C) remains unchanged
D) becomes infinite
Ans:B
10) What is another name for relative permittivity?
A) Dielectric strength
B) Electric intensity
C) Potential gradient
D) Dielectric Constant
Ans:D
If you like my post please share it with your friends and subscribe to latest updates.. If you have doubts you can start new topic on forum and start discussion with our readers..
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