Practice Test: Question Set - 05
1. Which capacitor will be physically smaller for the same ratings?
- (A) Ceramic capacitor
- (B) Paper capacitor
- (C) Both will be of equal size
- (D) None of the above
2. For closer tolerances which of the following capacitors is usually preferred?
- (A) Paper capacitor
- (B) Mica capacitor
- (C) Ceramic disc capacitor
- (D) None of the above
3. The inverse of capacitance is called
- (A) Reluctance
- (B) Conductance
- (C) Susceptance
- (D) Elastance
4. The number of Faraday tubes of flux passing through a surface in an electric field is called
- (A) Electric flux
- (B) Electric flux density
- (C) Magnetic flux density
- (D) Electric charge density
5. Permittivity is expressed in
- (A) Farad/sqm
- (B) Farad/meter
- (C) Weber/meter
- (D) Weber/sqm
6. A potential of 400 V is applied to a capacitor, the plates of which are 4 mm apart. The strength of electric field is
- (A) 100 kV/m
- (B) 10 kV/m
- (C) 5 kV/m
- (D) 2 kV/m
7. Dielectric strength of a medium is usually expressed in
- (A) J/mm
- (B) C/m2
- (C) kV/mm
- (D) N/mm
8. Voltage applied across a ceramic dielectric produces an electrolytic field 100 times greater than air. What will be the value of dielectric constant?
- (A) 50
- (B) 100
- (C) 150
- (D) 200
9. The direction of electric field due +0 positive charge is:
- (A) Away from the charge
- (B) Towards the charge
- (C) Both (A) and (B)
- (D) None of the above
10. The capacitance of a capacitor is not affected by
- (A) Distance between plates
- (B) Area of plates
- (C) Thickness of plates
- (D) All of the above
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