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Which method demonstrates electrostatic induction?

ARubbing a balloon on hair

BTouching a charged sphere to a neutral sphere

CBringing a charged rod near a neutral metal rod

DConnecting a battery to a circuit

Answer:

C. Bringing a charged rod near a neutral metal rod

Read Explanation:

Bringing a charged rod near a neutral metal rod

This method demonstrates electrostatic induction, where a charged object (the charged rod) induces a redistribution of charges in a neutral object (the neutral metal rod) without physically touching it.

When the charged rod is brought near the neutral metal rod:

  • The neutral metal rod becomes polarized, with opposite charges induced on either side.

  • The side of the metal rod closest to the charged rod develops an opposite charge.

  • The side of the metal rod farthest from the charged rod develops a similar charge.

This is a classic example of electrostatic induction.


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