A. always polarised
B. usually of fixed value
C. electrolytic condenser
D. a variable condenser
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Related Mcqs:
- A gang condenser is a____________?
A. polarised capacitor
B. variable capacitor
C. ceramic capacitor
D. none of the above - A condenser suitable for D.C. only is________?
A. metallic plate variable gang condenser
B. metallic paper capacitor
C. oil impregrated paper condenser
D. poled aluminium electrolytic condenser - What is the value of capacitance that must be connected in parallel with 50 pF condenser to make an equivalent capacitance of 150 pF ?
A. 50 pF
B. 100 pF
C. 150 pF
D. 200 pF - Paper capacitors usually have a tolerance of___________?
A. ± 5%
B. ± 10%
C. ± 15%
D. ± 20% - A paper capacitor is usually available in the form of_____________?
A. tubes
B. rolled foil
C. disc
D. meshed plates - A capacitor stores 0.24 coulombs at 10 volts. Its capacitance is___________?
A. 0.024 F
B. 0.12 F
C. 0.6 F
D. 0.8 F - If three 10 uF capacitors are connected in parallel, the net cararitance is___________?
A. 20 uF
B. 30 uE
C. 40 uF
D. 50 uF - 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 - If an ohmmeter reading immediately goes practically to zero and stays there, capacitor is___________?
A. charged
B. short-circuited
C. lossy
D. satisfactory - Dielectric strength of mica is___________?
A. 10 to 20 kV/mm
B. 30 to 50 kV/mm
C. 50 to 200 kV/mm
D. 300 to 500 kV/mm
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