1. Work done in charging a capacitor is __________ A. QV B. 1⁄2QV C. 2QV D. QV2 2. Energy stored in a 2000mF capacitor charged to a potential difference of 10V is? A. 100J B. 200J C. 300J D. 400J 3. When do we get maximum energy from a set of capacitors? A. When …
1. A CR network is one which consists of _________ A. A capacitor and resistor connected in parallel B. A capacitor and resistor connected in series C. A network consisting of a capacitor only D. A network consisting of a resistor only 2. At DC, capacitor acts as _________ A. Open circuit B. Short …
1. An 8µF capacitor is connected in series with a 0.5 megaohm resistor. The DC voltage supply is 200V. Calculate the time constant. A. 1s B. 2s C. 3s D. 4s 2. An 8µF capacitor is connected in series with a 0.5 megaohm resistor. The DC voltage supply is 200V. Calculate the initial charging …
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1. An 8µF capacitor is connected in series with a 0.5 megaohm resistor. The DC voltage supply is 200V. Calculate the time constant. A. 1s B. 2s C. 3s D. 4s 2. An 8µF capacitor is connected in series with a 0.5 megaohm resistor. The DC voltage supply is 200V. Calculate the initial charging …
1. The charging time constant of a circuit consisting of a capacitor is the time taken for the charge in the capacitor to become __________ % of the initial charge. A. 33 B. 63 C. 37 D. 36 2. The discharging time constant of a circuit consisting of a capacitor is the time taken …
1. The charging time constant of a circuit consisting of a capacitor is the time taken for the charge in the capacitor to become __________ % of the initial charge. A. 33 B. 63 C. 37 D. 36 2. The discharging time constant of a circuit consisting of a capacitor is the time taken …
1. Which of the following depends on the charging and discharging rate of a capacitor? A. Time constant B. Current C. Power D. Voltage 2. What is the initial current while charging a capacitor? A. High B. Low C. 0 D. Cannot be determined 3. What is the final current while charging a …
1. Potential drop in a dielectric is equal to _______ A. Electric field strength × thickness B. Electric field strength × area of a cross-section C. Electric field strength D. Zero 2. The electric field strength is 10N/C and the thickness of the dielectric is 3m. Calculate the potential drop in the dielectric. A. …
1. In order to obtain a high value for capacitance, the permittivity of the dielectric medium should be? A. Low B. High C. Zero D. Unity 2. Find the capacitance of a capacitor whose area of a cross-section of the plates is 4m2 and the distance of separation between the plates is 2m. The …
1. In order to obtain a high value for capacitance, the permittivity of the dielectric medium should be? A. Low B. High C. Zero D. Unity 2. Find the capacitance of a capacitor whose area of a cross-section of the plates is 4m2 and the distance of separation between the plates is 2m. The …
