A charge $q$ is placed at the centre of the line joining two equal charges $Q$. The system of the three charges will be in equilibrium, if $q$ is equal to
A charge $q$ is placed at the centre of the line joining two equal charges $Q$. The system of the three charges will be in equilibrium, if $q$ is equal to
- [AIEEE 2002]
- [IIT 1987]
- [AIPMT 1995]
- [AIIMS 2017]
- A
$ - \frac{Q}{2}$
- B
$ - \frac{Q}{4}$
- C
$ + \frac{Q}{4}$
- D
$ + \frac{Q}{2}$
Similar Questions
Equal charges $q$ are placed at the four corners $A,\,B,\,C,\,D$ of a square of length $a$. The magnitude of the force on the charge at $B$ will be
Equal charges $q$ are placed at the four corners $A,\,B,\,C,\,D$ of a square of length $a$. The magnitude of the force on the charge at $B$ will be
An isolated solid metallic sphere is given $ + Q$ charge. The charge will be distributed on the sphere
An isolated solid metallic sphere is given $ + Q$ charge. The charge will be distributed on the sphere
Consider two point charges of equal magnitude and opposite sign separated by a certain distance. The neutral point due to them
Consider two point charges of equal magnitude and opposite sign separated by a certain distance. The neutral point due to them
For regular pentagon system shown in figure, find force on $q_0$
For regular pentagon system shown in figure, find force on $q_0$
If two charges of $1$ coulomb each are placed $1 \,km$ apart, then the force between them will be ........... $N$
If two charges of $1$ coulomb each are placed $1 \,km$ apart, then the force between them will be ........... $N$