A. low capacitance
B. fixed capacitance
C. variable capacitance
D. large value of capacitance
An electrolytic capacitor is generally made to provide__________? Read More »
Electrostatics A. 5 times smaller than before
B. 5 times greater than before
C. 10 times greater than before
D. 25 times larger than before
A. metallic plate variable gang condenser
B. metallic paper capacitor
C. oil impregrated paper condenser
D. poled aluminium electrolytic condenser
A condenser suitable for D.C. only is________? Read More »
Electrostatics A. Mica capacitor
B. Paper capacitor
C. Electrolytic capacitor
D. Ceramic capacitor
Which of the following capacitor is preferred in case of single phase motor ? Read More »
Electrostatics A. decreases
B. increases
C. reduces to zero
D. remain unchanged
When a dielectric is placed in an electric field the field strength____________? Read More »
Electrostatics A. milli-coulomb
B. micro-coulomb
C. pico-coulomb
D. coulomb
A. move out of the field of influence of the two charges
B. remain in stable equilibrium
C. not be in equilibrium
D. be in unstable equilibrium
A. Air capacitor
B. Electrolytic capacitor
C. Mica capacitor
D. none of the above
Which of the following capacitors preferred for high frequency circuits ? Read More »
Electrostatics A. construct insulated cabins
B. insulate the machinery
C. ground the framework
D. humidify the surroundings
In order to remove static electricity from machinery___________? Read More »
Electrostatics A. an electric field
B. a magnetic field
C. both A. and (6)
D. none of the above
A region around a stationary electric charge has__________? Read More »
Electrostatics