Advertisements
Advertisements
प्रश्न
Describe the method of charging a conductor by induction.
Advertisements
उत्तर १
INDUCTION: “Charging an uncharged conductor by bringing a charged conductor near it without touching is called INDUCTION
Place uncharged conductor B near positively charged conductor A nearer end of B has negatively charged electrons attracted towards positively protons remain on the farther end of B.
Hence, nearer end of B is charged oppositely i.e. negative. We can test it by pith ball electroscope. On removing charged body A away from B, The body B becomes neutral due to protons and electron in B are equal and have opposite charge.
उत्तर २
When charging a conductor by induction, a charged object is brought close to but does not touch the conductor. In the end, the conductor has charge of the opposite sign as the charge on the object.
One way to carry out the four-step process:
- Bring the charged object close to, but not touching, the conductor. Charge on the conductor shifts in response to the nearby charged object.
- Connect the conductor to ground. The ground is basically a charge reservoir - anything that can give up or receive charge without noticing the change. Electrons flow from ground to the conductor if the charged object is positive, and the opposite way if the object is negative. The conductor now has a net charge with a sign opposite to the sign on the charged object.
- Remove the ground connection. The transferred electrons can't get back to where they came from.
- Remove the charged object. The net charge distributes itself over the surface of the conductor.
APPEARS IN
संबंधित प्रश्न
When glass rod is rubbed with dry silk cloth, the electrons move from glass to silk.
When a comb is rubbed with dry hair both comb and paper get similarly charged.
An ebonite rod can be charged by touching it with a charged copper rod.
Mercury is a ............ of electricity while pure water is ............ of electricity.
Match the following
| Column A | Column B |
| A. Two like charges | 1 negative charge |
| B. Two unlike charges |
2 repel |
| C. Silver is a | 3 insulator |
| D. Silk is an | 4 attract |
| E. Ebonite rod rubbed with fur acquires | 5 conductor |
A glass rod rubbed with silk is touched with the disc of a negatively charged gold leaf electroscope. The divergence of leaves will
What do you mean by conservation of charges?
Give one example each of a conductor and an insulator of electricity.
Figure below shows a metal rod AB placed on an insulating stand.
In figure (a) a negatively charged ebonite rod C is touched with the metal rod AB, while in figure (b), the negatively charged ebonite rod C is held near the rod AB. State the kind of charges at the ends A and B of the rod, in each case.
What are the characteristics of a static electric charge?
