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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 - Physics

Answer in Brief

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.

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Solution

In figure (a) conduction takes place.
There is negative charge at both ends A and B

In figure (b) Induction takes place.
End A has oppositely positive charge called Bound charge and End B is similarly charged i.e. negative free charge.

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APPEARS IN

Selina Concise Physics Class 8 ICSE
Chapter 8 Electricity
Exercise 8 (B) (Short/Long answer questions) | Q 31 | Page 167
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