CBSE Class 12-science Answered
4 charges Q,q,Q&q are kept at the 4 corners of a square . what is the relation between Q and q so that the net force on a charge q is 0?
Asked by monami chatterjee | 22 Jun, 2011, 04:43: PM
Expert Answer
Let the charges are arranged on the corners of a square of side r.
A (Q) B(q)
......................
. .
. .
. .
. .
......................
D(q) C(Q)
The net force on the charge q placed on corner D = (1/4??0r2)[q2 / 2 - sqrt{(Qq)2 + (Qq)2}]
For this net force to be zero,
[q2/2 - sqrt{(Qq)2 + (Qq)2}] = 0
q2/2 = sqrt{(Qq)2 + (Qq)2} = Qq sqrt (2)
q = 2 sqrt (2) Q
Answered by | 23 Jun, 2011, 08:39: AM
Concept Videos
-
Electric Charge - Part 1
This video describes the concept of charge, conductors and insulators, and ... -
Gold Leaf Electroscope - Part 1
This video explains the basic properties of electric charges. -
Coulom's Law of Electric Force - Part 1 ...
This video describes Coulomb's law to calculate the force between any two p... -
All about electric fields
Define electric field in terms of Coulomb's force. Apply superposition prin... -
Electric Field Lines
This video explains the representation of electric field due to a single ch...
CBSE 12-science - Physics
Asked by niharvijayvargiya5 | 23 Apr, 2024, 06:40: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by adityagalar2007 | 06 Apr, 2024, 01:06: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by amlanmcob | 06 Apr, 2024, 12:27: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by hussain221man | 05 Apr, 2024, 08:44: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by manishamunda787 | 02 Apr, 2024, 11:07: AM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by am1954077 | 08 Mar, 2024, 04:57: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by rishabhverma895334 | 01 Mar, 2024, 07:24: AM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by rameshsanju123 | 08 Feb, 2024, 08:45: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by sachin.sondur2012 | 07 Feb, 2024, 11:26: AM
ANSWERED BY EXPERT
