DIELECTRICS AND POLARISATION
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Electrostatic Potentials and Capacitance

272258 Two vertical metallic plates carrying equal and opposite charges are kept parallel to each other like a parallel plate capacitor. A small spherical metallic ball is suspended by a long insulated thread such that it hangs freely in the centre of the two metallic plates. The ball, which is uncharged, is taken slowly towards the positively charged plate and is made to touch that plate. Then the ball will

1 stick to the positively charged plate
2 come back to its original position and will remain there
3 oscillate between the two platestauching each plate in turn
4 oscillate between the two plates without touch them
NCERT Page-73/N-66
Electrostatic Potentials and Capacitance

272257 A parallel plate capacitor is located horizontally such that one of the plates is submerged in a liquid while the other is above the liquid surface. When plates are charged the level of liquid

1 rises
2 falls
3 remains unchanged
4 may rise or fall depending on the of charge amount
NCERT Page-71/N-66
NEET DIGITAL LIBRARY
Electrostatic Potentials and Capacitance

272258 Two vertical metallic plates carrying equal and opposite charges are kept parallel to each other like a parallel plate capacitor. A small spherical metallic ball is suspended by a long insulated thread such that it hangs freely in the centre of the two metallic plates. The ball, which is uncharged, is taken slowly towards the positively charged plate and is made to touch that plate. Then the ball will

1 stick to the positively charged plate
2 come back to its original position and will remain there
3 oscillate between the two platestauching each plate in turn
4 oscillate between the two plates without touch them
NCERT Page-73/N-66
Electrostatic Potentials and Capacitance

272257 A parallel plate capacitor is located horizontally such that one of the plates is submerged in a liquid while the other is above the liquid surface. When plates are charged the level of liquid

1 rises
2 falls
3 remains unchanged
4 may rise or fall depending on the of charge amount
NCERT Page-71/N-66
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