Name: Electrical Energy and Flow of Charge in a Circuit
Uploaded: 2019-07-19
Duration: 3 min 8 s
Description: In this video, we will visualise the flow of charge as a utility and discuss the direction of flow of charge in a simple circuit. Click on the play button fo...

Question

When a positively charged body is brought near an uncharged metal rod, the part of the rod near the charged body acquires a negative charge, and the far side a positive charge. Can you say why this happens? Remember that in a body, negative charges are mobile whereas positive charges are fixed.

Accepted Answer

When a positively charged body is brought near an uncharged metal rod, transfer of charge occurs and the part of the rod near the charged body acquires a negative charge, and the far side a positive charge. We know that negative charges are mobile whereas the positive charges are not mobile. Because of the process of induction, when a positively charged body is brought near an uncharged metal rod, the part of the rod closest to the charged body develops a negative charge. The electrons are drawn to the positively charged part. The negative charges get collected near the metal rod's end. Because of the lack of negative charges, the rod's far end becomes positively charged.

When a positively charged body is brought near an uncharged metal rod, the part of the rod near the charged body acquires a negative charge, and the far side a positive charge. Can you say why this happens? Remember that in a body, negative charges are mobile whereas positive charges are fixed.

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