Of the following capacitors, which one has the highest dielectric constant? Paper Glass Air Mica TRUE ANSWER : ? YOUR ANSWER : ?
A capacitance of 100 fiF is connected in series with a resistance of 8000 £2. The time constant of the circuit is 0.4 s 0.8 s 1.2 s 0.6 s TRUE ANSWER : ? YOUR ANSWER : ?
For which of the following parameter variation, the capacitance of the capacitor remains unaffected ? Thickness of the plates Distance between plates Area of the plates Nature of dielectric TRUE ANSWER : ? YOUR ANSWER : ?
The time constant and R-C circuit may also be defined as the time during which the charging current falls to ______ percent of its initial maximum value 42 37 54 45 TRUE ANSWER : ? YOUR ANSWER : ?
A 10 µF, 20 µF, 22 µF, and 100 µF capacitor are in parallel. The total capacitance is 4.86 µF 2.43 µF 100 µF 152 µF TRUE ANSWER : ? YOUR ANSWER : ?
Five time constants are required for a capacitor to charge fully or discharge fully. 1 TRUE ANSWER : ? YOUR ANSWER : ?
The property of a capacitor to store electricity is called its capacitance charge None of these energy TRUE ANSWER : ? YOUR ANSWER : ?
The value of E within the field due to a point charge can be found with the help of Faraday’s laws Coulomb’s laws Kirchhoff's laws None of these TRUE ANSWER : ? YOUR ANSWER : ?
An electrolytic capacitor is generally made to provide Fixed capacitance Variable capacitance Low capacitance Large value of capacitance TRUE ANSWER : ? YOUR ANSWER : ?
Which capacitor will be physically smaller for the same ratings ? Ceramic capacitor None of these Both will be of equal size Paper capacitor TRUE ANSWER : ? YOUR ANSWER : ?