Charging a metal sphere by contact using a positively charged rod, followed by grounding can result in ________ charge in a metal sphere.a)positiveb)Zeroc)positive or negative depending on which end is groundedd)negativeCorrect answer is option 'B'. Can you explain this answer?

Question

Answer

The charge on the rod is shared between the rod and the sphere when they are in contact with each other. However, on grounding the charge will flow to the earth and the charge on the sphere becomes zero

Answer

when you will get that sphere in contact you will get a positively charged sphere when you will ground that the earth will provide excess of electrons to neutralise that charge hence net charge is zero

Answer

Answer

Charging a metal sphere by contact using a positively charged rod, followed by grounding can result in zero charge in a metal sphere.

Explanation:
When a positively charged rod is brought in contact with a metal sphere, some of the positive charges from the rod are transferred to the sphere. This happens because electrons in the metal sphere are attracted to the positively charged rod and they move towards it, leaving behind positive charges on the metal sphere. This process is known as charging by contact.

After charging the metal sphere, if it is grounded, the excess charges on the sphere are neutralized. Grounding involves connecting the metal sphere to the ground, which is an infinite reservoir of charges. When the sphere is grounded, the excess positive charges on the sphere flow into the ground, neutralizing the charge.

Key Points:
- Charging a metal sphere by contact using a positively charged rod results in the transfer of positive charges from the rod to the sphere.
- Grounding the metal sphere allows the excess charges on the sphere to flow into the ground, neutralizing the charge.
- Grounding provides a pathway for the charges to redistribute and reach a state of equilibrium.
- Since the excess positive charges are neutralized during grounding, the resulting charge on the metal sphere becomes zero.
- It is important to note that if the metal sphere was negatively charged initially, charging by contact with a positively charged rod followed by grounding would result in a neutral sphere.

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