While testing a capacitor with ohm meter, if the capacitor shows charging, but the final resistance reading is appreciably less than normal, it can be concluded that the capacitor is____________?
A. Short-circuited
B. Open circuited
C. Alright
D. Leaky
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Electric field intensity is a quantity_____________?
A. Scalar
B. Vector
C. Both a. and (6)
D. None of the above
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Energy stored in the electric field of a capacitor C when charged from a D.C source of voltage V is equal to joules_______________?
A. Cv2
B. C2v
C. Cv2
D. Cv
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When 4 volts e.m.f. is applied across a 1 farad capacitor, it will store energy of_____________?
A. 2 joules
B. 4 joules
C. 6 joules
D. 8 joules
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Dielectric constant for mica is nearly_____________?
A. 200
B. 100
C. 3 to 8
D. 1 to 2
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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
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The capacitor preferred for high frequency circuits is_____________?
A. Air capacitor
B. Mica capacitor
C. Electrolytic capacitor
D. None of the above
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If a 6 uF capacitor is charged to 200 V, the charge in coulombs will be____________?
A. 800 uc
B. 900 uc
C. 1200 uc
D. 1600 uc
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Which of the following material has least value of dielectric constant ?
A. Ceramics
B. Oil
C. Glass
D. Paper
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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
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Word of the Day
13 Sep
Conjecture
an opinion or conclusion formed on the basis of incomplete information.
تکہ مارنا، قیاس کرنا، تاویل

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