Q. A mica capacitor and a ceramic capacitor both have the same physical dimensions. Which will have more value of capacitance ? Ceramic capacitor Mica capacitor Both will have identical value of capacitance It depends on applied voltage Answer: Ceramic capacitor
Q. What is the value of capacitance that must be connected in parallel with 50 pF condenser to make an equivalent capacitance of 150 pF ? 50 pF 100 pF 150 pF 200 pF Answer: 100 pF
Q. If a 6 uF capacitor is charged to 200 V, the charge in coulombs will be 800 uC 900 uC 1200 uC 1600 uC Answer: 1200 uC
If a 6 uF capacitor is charged to 200 V, the charge in coulombs will be Read More »
Q. The capacitor preferred for high frequency circuits is air capacitor mica capacitor electrolytic capacitor none of the above Answer: mica capacitor
The capacitor preferred for high frequency circuits is Read More »
Q. A capacitor in a circuit became hot and ultimately exploded due to wrong connections, which type of capacitor it could be ? Paper capacitor Ceramic capacitor Electrolytic capacitor Any-of the above Answer: Electrolytic capacitor
Q. When 4 volts e.m.f. is applied across a 1 farad capacitor, it will store energy of 2 joules 4 joules 6 joules 8 joules Answer: 8 joules
When 4 volts e.m.f. is applied across a 1 farad capacitor, it will store energy of Read More »
Q. The capacity of capacitor bank used in power factor correction is expressed in terms of kW kVA kVAR volts Answer: kVAR
The capacity of capacitor bank used in power factor correction is expressed in terms of Read More »
Q. Electric field intensity is a quantity scalar vector both A. and B. none of the above Answer: vector
Q. The relative permittivity of free space is given by 1 10 100 1000 Answer: 1
The relative permittivity of free space is given by Read More »
Q. Energy stored in the electric field of a capacitor C when charged from a D.C source of voltage V is equal to joules CV2 C2V CV2 CV Answer: CV2
