Q. Ability of capacitor to store charge depends upon area of plates distance between plates type of dielectric used all of above Answer: all of above
Ability of capacitor to store charge depends upon Read More »
Q. In combination of capacitors in series, capacitors are connected parallel side by side up and down none of the above Answer: side by side
In combination of capacitors in series, capacitors are connected Read More »
Q. Coulomb’s law is only true for point charges whose sizes are medium very large very small none of the above Answer: very small
Coulomb’s law is only true for point charges whose sizes are Read More »
Q. If metallic conductor is charged negatively then its weight Remains same First increases then decreases Decreases then increases Increases for a while Answer: Increases for a while
If metallic conductor is charged negatively then its weight Read More »
Q. Photocopier and inject printer are dealt in Electrostatics Charges in motion Capacitors Electric fields Answer: Electrostatics
Q. SI unit of electric potential is volts ohm coulomb newton Answer: volts
Q. 3 capacitors with capacitances 5µF, 6µF and 7µF are arranged in parallel combination with a battery of 5V, as 1µF = 10-6F, voltage across each capacitor is 15V 5V 18V 20V Answer: 5V
Q. An electric charge at rest produces only a magnetic field only an electric field neither electric field nor magnetic field both electric and magnetic fields Answer: only an electric field
Q. Electric force between two point charges in air or vacuum is F. If we replace air or vacuum by an insulator (dielectric) of relative permitivity Cr the force between the charges will decrease increase remain constant depends upon composition of dielectric Answer: decrease
Q. An electric field can deflect neutrons rays both glass rod and silk acquire negative charge none Answer: none
