wiz-icon
MyQuestionIcon
MyQuestionIcon
3
You visited us 3 times! Enjoying our articles? Unlock Full Access!
Question

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 center 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 :

A
stick to the positively charged plate
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
come back to its original position and will remain there
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
oscillate between the two plates touching each plate in turn
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
oscillate between the two plates without touch them
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C oscillate between the two plates touching each plate in turn
The ball on touching plate A will get positive charged. It will be repelled by A and get attracted towards B. After touching B it will get negatively charged. It will now be repelled by B and get attracted towards A.
Thus it will remain oscillating and at the extreme position touch the plates.
256668_204040_ans_1f6e4714dc574934b939bef46877fb1b.png

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Static Charges
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon