Home
Class 12
PHYSICS
Induced charge q can never be greater th...

Induced charge q can never be greater than inducing charge Q. Why ?

Text Solution

Verified by Experts

When a chargeq rod ( inducing body) is held near one end of an insulated uncharged metal sphere ( induced body ), the electrons are drawn to one end,but the flow of electron ceases after some time (though there is an almost inexhausible supply of electrons in the metals sphere) because induced electrons repel movement of fresh electrons getting induced.
Promotional Banner

Topper's Solved these Questions

  • ELECTRIC CHARGES AND FIELDS

    AAKASH INSTITUTE ENGLISH|Exercise TRY YOURSELF|33 Videos

  • ELECTRIC CHARGES AND FIELDS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT(SECTION-A) Objective Type Question|45 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION-D)|10 Videos

  • ELECTROMAGNETIC INDUCTION

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT(SECTION -D) Assertion-Reason type Question)|15 Videos

Similar Questions

Explore conceptually related problems

In the simple L-R circuit, can the emf induced across the inductor ever be greater than the emf of the battery used to produce the current?

A point charge + q is fixed at same height as centre of an uncharged sphere placed on a smooth horizontal surface as shown in figure. Neglect the induced charges on horizontal surface. Then conducting sphere is released from rest. Then the conducting sphere

If only one charge is availabel, can it be used to obtain a charge many times greater than itself in magnitude?

An isolated coductor, initially free from charge, is charge by repeated conacts with a plate, which afrer each contact has a charge Q due to some mechanism.If q is the charge on the conductor after the first operation, prove that the maximum charge that can be give to the conductor in this way is Qq//Q-q .

An insulated conductor initiallly free from charge is charged by repeated contacts with a plate which after each contact is replenished to a charge Q . If q is the charge on the conductor after first operation prove that the maximum charge which can be given to the conductor in this way is (Qq)/(Q-q)

Show in the figure are two point charge + Q and - Q inside the cavity of the Spherical .shell the changes are kept near the surface of the cavity on opposite sides of the centre of the shell if sigma_1 is the surface charge on the inner surface and Q_1 net charge on it and sigma_2 the surface charge on the outer surface and Q_2 net charge on it then :

A dielectric slab is inserted between the plates of a capacitor. The charge on the capacitor is Q and the magnitude of the induced charge on each surface of the dielectric is Q' .

As shown in the figure, à magnet is moved with a fast speed towards a coil at rest. Due to this induced emf, induced current and induced charge in the coll is E, I and Q respectively. If the speed of the magnet is doubled, the incorrect statement is

A charge +q is placed at a distance 'd' from the centre of the uncharged metallic cube of side 'a'. The electric field at the centre of the cube due to induced charges on the cube will be

A charge q kept in front of a neutral metallic sphere. Find the electric field at the centre of sphere due to the induced charges on the surface of the sphere shown. Strategy : The net electric field inside the conductor is zero. This is produced by induced charges and the external charge.