A small metal ball is suspended in a uniform electric field with the help of an insulated thread. If high energy $X$ -ray beam falls on the ball, then the ball
will be deflected in the direction of the field
will be deflected in the direction opposite to the field
will not be deflected
will oscillate in the field
A thin semi-circular ring ofradius $r$ has a positive charge $q$ distributed uniformly over it. The net field $\vec E$ at the centre $O$ is
A charge produces an electric field of $1\, N/C$ at a point distant $0.1\, m$ from it. The magnitude of charge is
Whose result the whole electrostatic is ?
Three identical point charges, as shown are placed at the vertices of an isosceles right angled triangle. Which of the numbered vectors coincides in direction with the electric field at the mid-point $M$ of the hypotenuse
The given diagram shows two semi infinite line of charges having equal (in magnitude) linear charge density but with opposite sign. The electric field at any point on $x$ axis for $(x > 0)$ is along the unit vector