| 1. | If two conducting sphere are connected after charging separately then ? | |
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Electrostatic energy energy and charge remains conserved
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Electrostatic energy sphere energy will remain conserved
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Electrostatic energy charges remains conserved
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None
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Report Question| 2. | Charge is the property associated with matter due to which it produces and experiences ? | |
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magnetic effects only
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both electric and magnetic effects
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electric effects only
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None of these
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| 3. | Quantisation of charge was experimentally demonstrated by ? | |
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Millikan’s oil drop experiment
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Davisson and Germer experiment
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Frank-Hertz experiment
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Einstein’s photoelectric effect
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| 4. | Electric lines of force about a negative point charge are ? | |
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radial, outwards
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radial, inwards
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circular anticlockwise
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circular clockwise
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| 5. | Gauss's law is valid for ? | |
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only irregular open surfaces
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any open surface
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any closed surface
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only regular close surfaces
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| 6. | In non-uniform electric field, electric dipole experiences ? | |
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force only
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None of these
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torque only
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torque as well as net force
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| 7. | The surface considered for Gauss’s law is called ? | |
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Plane surface
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Gaussian surface
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Closed surface
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Spherical surface
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| 8. | A point charge +q is placed at a distance d from an isolated conducting plane. The field at a point P on the other side of the plane is ? | |
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directed radially towards the point charge.
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directed radially away from the point charge.
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directed perpendicular to the plane and away from the plane.
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directed perpendicular to the plane but towards the plane.
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| 9. | The unit of electric dipole moment is ? | |
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farad
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coulomb-meter
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newton
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coulomb
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| 10. | A soap bubble is given a negative charge, then its radius ? | |
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decreases
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may increase or decrease
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remains unchanged
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increases
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