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MCQs 1: If metallic conductor is charged negatively then its weight______________?

Remains same First increases then decreases Decreases then increases Increases for a while
Answer Explanation

MCQs 2: If two charges are increased by two times then force_____________?

Decreases 9 times Increases 9 times Increases 4 times Decreases 4 times
Answer Explanation

MCQs 3: If mica sheet is placed between the plates of a capacitor the capacity_______________?

increases decreases increases then decreases decreases then increases
Answer Explanation

MCQs 4: If an electrons is allowed to move along the field in a non uniform electric field then it will follow__________________?

Spiral path Straight line Curved path Circular path
Answer Explanation

MCQs 5: Selenium becomes a conductor in light so it behaves like____________?

Semiconductor Photodiode Light emitting diode Capacitor
Answer Explanation

MCQs 6: In a charged capacitor the energy resides in________________?

magnetic hield electric field nuclear field gravitational field
Answer Explanation

MCQs 7: A capacitor is a perfect insulator for______________?

direct current alternating current both for the direct and alternating current none of above
Answer Explanation

MCQs 8: A charge of 0.10C accelerated through a potential difference of 1000V acquires kinetic energy_______________?

200J 100J 1000J 100 eV
Answer Explanation

MCQs 9: Electric intensity at infinite distance from the point charge is_____________?

zero infinite positive negative
Answer Explanation

MCQs 10: In a non-uniform electric field a polar molecule will experience____________?

Net torque Net force both series and parallel combinations zero
Answer Explanation

MCQs 11: Two oppositely charged balls A and B attract third conducting ball C when placed near them turn by turn. Then ball C must be______________?

positively charged electrically neutral negatively charged positively and negatively charged
Answer Explanation

MCQs 12: capacitor is to have an energy content of 20J it must be placed across a potential difference of________________?

4 volts 9 volts 2 volts 1 vol
Answer Explanation

MCQs 13: A 25eV electron has a speed of______________?

2 x 106m/sec 3 x 106m/sec 5 x 106m/sec 4 x 106m/sec
Answer Explanation

MCQs 14: Equipotential planes are_______________?

parallel to one another non parallel to one another intersecting circular
Answer Explanation

MCQs 15: The metallic spheres A and B of radii 2m and 4m respectively carry the same charge 4 x 10 8C. If the spheres are connected by a copper wire_______________?

charge will flow from A to B charge will flow from B to A no flow of charge will occur both a and b are possible
Answer Explanation

MCQs 16: Two similar charges each of one coulomb placed in air one meter apart repel each other with a force______________?

9 x 109N 9.2 x 104N 9 x 109N 9 x 107N
Answer Explanation

MCQs 17: A closed surface contains two equal and opposite charges. The net electric flux from the surface will be________________?

negative positive zero data is insufficient
Answer Explanation

MCQs 18: Electric intensity being a vector quantity always points_______________?

along the direction of force experienced by a unit positive charge opposite to the direction of force experienced by a unit positive charge perpendicular to the direction of force experienced by a uit positive charge any of above
Answer Explanation

MCQs 19: 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 Explanation

MCQs 20: The force per unit charge is know as__________________?

electric flux electric intensity electric potential all of above are same
Answer Explanation

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