Charge Behaviour
Trending Questions
Two conductors having the same type of charges are connected by a conducting wire. There would not be any amount of flow of charges on them if?
A body can be negatively charged by
Giving excess of electrons to it
Removing some electrons from it
Giving some protons to it
Removing some neutrons from it
A soap bubble is given a negative charge, then its radius :
Increases
Decreases
Remains unchanged
None of these
What happens when a positively charged body is connected to a negatively charged one?
(charge of dipole is q and radius of sphere is R)
- kqx3
- kqxR3
- kqR2
- Zero
(1) Ball A repels C and attracts B.
(2) Ball D attracts B and has no effect on E
(3) A negatively charged rod attracts both A and E.
Based on above information, select the correct charge configuration for balls (if any):
ABCDE(P)+−+0+(Q)+−++0(R)+−+00(S)−−−00
- Q
- S
- P
- R
Objects A, B and C are three identical, spherical conductors. Originally A and B both have charges of +3 mC, while C has a charge of –6 mC. Object A and C are allowed to touch, then they are moved apart. Then objects B and C are allowed to touch, and they are moved apart.
If Object A and B are now held near each other, they will
attract
repel
have no effect on each other
- First attract to a certain position then repel
- λ2√2πϵ0a(^i+^j+^k)
- λ2πϵ0a(^i+^j+^k)
- √2λπϵ0a(^i+^j+^k)
- λ3πϵ0a(^i+^j+^k)
What current will flow after the switch is closed?
- 0
- 10−5 A
- 1 A
- 10 A
- Electrostatic and gravitational
- Electrostatic and nuclear
- Gravitational and nuclear
- Some other forces like Vander Waals
In the given picture the Ring A at the bottom is positively charged. Another Ring B is brought and placed over it. Ring B hovers at a certain height above A. What could be the charge on Ring B?
Positive
Negative
Neutral
Can’t say
- 6.6×10−4 C/m3
- 6.6×10−5C/m3
- 6.6×10−6C/m3
- None of these
A body can be negatively charged by
giving excess of electrons to it
removing some electrons from it
giving some protons to it
removing some neutrons from it
- 2 : 1 : 2
- 1 : 3 : 3
- 1 : 1 : 1
- 2 : 3 : 4