Electronics Engineering MCQs [Quiz 25]

Q1. Under ordinary conditions, a body is considered
A. positively charged
B. neutral
C. negatively charged
D. stable

Q2. A positively charged body has
A. deficit of electrons
B. excess of neutrons
C. excess of electrons
D. deficit of protons

Q3. A negatively charge body has
A. deficit of electrons
B. excess of protons
C. excess of electrons
D. deficit of neutrons

Q4. 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

Q5. 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

Q6. What is the relative permittivity of air?
A. 0
B. 1
C. 8.854 × 10^-12
D. 4n × 10^-7

Q7. If two similar charges 1 coulomb each are placed 1 m apart in air, then the force of repulsion is
A.8 × 10^6 N
B. 9 × 10 ^9 N
C. 10^6 N
D. 5 × 10^6 N

Q8. If the relative permittivity of a material is 10, then its permittivity is
A. 4n × 10^-7 F/m
B. 4n × 10^-6 F/m
C. 8.854 × 10^-11 F/m
D. 8.854 × 10^-12 F/m

Q9. 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

Q10. What is another name for relative permittivity?
A. Dielectric strength
B. Electric intensity
C. Potential gradient
D. Dielectric constant

Updated: 24th July 2019 — 10:33 PM

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