Electrostatics

[amp_mcq option1=”50 pF” option2=”100 pF” option3=”150 pF” option4=”200 pF” correct=”option2″]

Detailed SolutionWhat is the value of capacitance that must be connected in parallel with 50 pF condenser to make an equivalent capacitance of 150 pF ?

[amp_mcq option1=”0.1 to 0.4″ option2=”0.5 to 1.0″ option3=”2.0 to 4.0″ option4=”5 to 100″ correct=”option3″]

Detailed SolutionThe dielectric constant (relative permittivity) of glass is given by

[amp_mcq option1=”proportional to d” option2=”inversely proportional to d” option3=”inversely proportional to d” option4=”none of the above” correct=”option2″]

Detailed SolutionThe electric field at a point situated at a distance d from straight charged conductor is

[amp_mcq option1=”Paper capacitor” option2=”Ceramic capacitor” option3=”Silver plated mica capacitor” option4=”None of the above” correct=”option3″]

Detailed SolutionWhich of the following capacitors will have the least variation?

[amp_mcq option1=”a steady value of applied voltage causes discharge” option2=”an increase in applied voltage makes a capacitor charge” option3=”decrease in applied voltage makes a capacitor charge” option4=”none of the above” correct=”option2″]

Detailed SolutionIn a capacitive circuit

[amp_mcq option1=”small” option2=”very small” option3=”large” option4=”zero” correct=”option3″]

Detailed SolutionIn the case of a lossy capacitor, its series equivalent resistance value will be

[amp_mcq option1=”two insulators separated by a conductor” option2=”two conductors separated by an insulator” option3=”two insulators only” option4=”two conductors only” correct=”option1″]

Detailed SolutionA capacitor consists of

[amp_mcq option1=”increases with rise in temperature” option2=”increases with moisture content” option3=”is same for all insulating materials” option4=”none of the above” correct=”option4″]

Detailed SolutionDielectric strength of medium

[amp_mcq option1=”electric flux” option2=”magnetic flux density” option3=”potential gradient” option4=”none of the above” correct=”option3″]

Detailed SolutionElectric intensity at any point in an electric field is equal to the at that point.

[amp_mcq option1=”Inductance” option2=”Capacitance” option3=”Potential gradient” option4=”None of the above” correct=”option1″]

Detailed Solutionis that property of a capacitor which delays any change of voltage across it.