[amp_mcq option1=”1 meter/coulomb” option2=”1 newton/meter” option3=”1 newton/coulomb” option4=”1 joule/coulomb” correct=”option1″]
Electrostatics
2. The sparking between two electrical contacts can be reduced by inserting a
[amp_mcq option1=”capacitor in parallel with contacts” option2=”capacitor in series with each contact” option3=”resistance in line” option4=”none of the above” correct=”option1″]
Detailed SolutionThe sparking between two electrical contacts can be reduced by inserting a
3. Dielectric strength of a medium is usually expressed in
[amp_mcq option1=”J/mm” option2=”C/m2″ option3=”kV/mm” option4=”N/mm” correct=”option3″]
Detailed SolutionDielectric strength of a medium is usually expressed in
4. Which of the following material has least value of dielectric constant ?
[amp_mcq option1=”Ceramics” option2=”Oil” option3=”Glass” option4=”Paper” correct=”option1″]
Detailed SolutionWhich of the following material has least value of dielectric constant ?
5. Three capacitors each of the capacity C are given. The resultant capacity 2/3 C can be obtained by using them
[amp_mcq option1=”all in series” option2=”all in parallel” option3=”two in parallel and third in series with this combination” option4=”two in series and third in parallel across this combination” correct=”option3″]
6. If a third equal and similar charge is placed between two equal and similar charges, then this third charge will
[amp_mcq option1=”move out of the field of influence of the two charges” option2=”remain in stable equilibrium” option3=”not be in equilibrium” option4=”be in unstable equilibrium” correct=”option4″]