Home
Class 12
PHYSICS
Two point charges +4q and +q are placed ...

Two point charges +4q and +q are placed 30 cm apart. At what point on the line joining them the electric field is zero ?

A

15 cm from the charge q

B

7.5 cm from the charge q

C

20 cm from the charge 4q

D

5 cm from the charge q

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

Two point charges 20muC and 80muC are placed 18 cm apart. Find the position of the point where the electric field is zero.

Two charges 5 xx 10^(-8)C and -3 xx 10^(-8)C are located 16 cm apart. At what point(s) on the line joining the two charges is the electric potential zero ? Take the potential at the infinity to be zero.

Two charge 3 xx 10^(-8)C and -2 xx 10^(-8)C are located 15 cm apart. At what point on the line joining the two charges the electric potential zero? Take the potential at infinity to be zero.

Two point charges +q and -q are placed at points A and B respectively separated by a samll distance. The electric field intensity at the midpoint O of AB :

Two point charges q_A= 3muC and q_(B) = -3muC are located 20 cm apart in vacuum. a. What is the electric field at the midpoint O of the line AB joining the two charges? b. If a negative test charge of magnitude 1.5.xx 10^(-9) C is placed at this point, what is the force experienced by the test charge?

Two particles A and B having charges of +2.00 xx 10^(-6) C and of - 4.00xx 10^(-6) respectively are held fixed at a separation of 20.0 cm . Locate the point(s) on the line AB where (a) the electric field is zero (b) the electric potential is zero.

Three point charges q, 2q and 8q are to be placed on a .9cm long straight line. Find the positions where the charges should be placed such that the potential energy of this system is minimum. In this situation, what is the electric field at the charge q due to the other two charges?

Two charges 10 muC and - 10 muC are placed at points A. and B separated by a distance of 10 cm. Find the electric. field at a point P on the perpendicular bisector of AB at. a distance of 12 cm from its middle point.