Home
Class 12
PHYSICS
Two bodies A and B of definite shape are...

Two bodies `A` and `B` of definite shape are placed near one another. Electrostaitc attraction is found between the bodies, then

A

Both bodies must be positively charged

B

Both bodies must be negatively charged

C

Both bodies must be oppositely charged

D

Body A may be neutral

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem, we need to analyze the situation where two bodies, A and B, are experiencing electrostatic attraction. We will use Coulomb's law and the principles of electrostatics to determine the nature of the charges on these bodies. ### Step-by-Step Solution: 1. **Understanding Electrostatic Forces**: - Electrostatic forces can be either attractive or repulsive. According to Coulomb's law, the force \( F \) between two charged bodies is given by the equation: \[ F = k \frac{|q_1 \cdot q_2|}{r^2} \] where \( k \) is Coulomb's constant, \( q_1 \) and \( q_2 \) are the magnitudes of the charges, and \( r \) is the distance between the charges. 2. **Identifying Charge Types**: - If both bodies have like charges (both positive or both negative), they will repel each other. - If one body is positively charged and the other is negatively charged, they will attract each other. 3. **Considering Neutral Bodies**: - A neutral body can also experience attraction if it is near a charged body. This occurs due to induction, where the presence of a charged body induces a charge separation in the neutral body, leading to attraction. 4. **Analyzing the Given Situation**: - The problem states that there is electrostatic attraction between bodies A and B. This means: - They could be oppositely charged (one positive, one negative). - One body could be charged, and the other could be neutral. 5. **Evaluating the Options**: - **Option A**: Both bodies must be positively charged – Incorrect (would repel). - **Option B**: Both bodies must be negatively charged – Incorrect (would repel). - **Option C**: Both bodies must be oppositely charged – This is a possibility but not the only scenario. - **Option D**: One body may be neutral – This is also a possibility as it can attract a charged body. 6. **Conclusion**: - Since the question states that there is electrostatic attraction, the most appropriate conclusion is that one body could be neutral, and the other could be charged, or they could be oppositely charged. Therefore, the best option is: - **Option D**: One body may be neutral. ### Final Answer: **Option D: One body may be neutral.**
Promotional Banner

Similar Questions

Explore conceptually related problems

Frictional force between two bodies

The gravitational force between two bodies is :

Select the correct option about the friction between the two bodies

Mark the correct statements about the friction between two bodies

Two bodies begin a free fall from the same height at a time interval of Ns. If vertical separation between the two bodies is Lm after n seconds from the start of the first body, then n is equal to

Two electric circuits are placed near one another. Each circuit has self inductance Must there be a mutual inductance.

Two electric circuits are placed near one another. Each circuit has self inductance Must there be a mutual inductance.

Two equal and opposite charges are placed at a certain distance apart and force of attraction between them is F. If 75% charge of one is transferred to another, then the force between the charges becomes

There are two bodies A and B of same mass. A is placed near equator of earth and B is placed at a height h above the pole of earth. if both the bodies weighs equally. Find h in terms of radius R of earth, angular speed omega of earth and g acceleration due to gravity close to earth.

A body released from a great height and falls freely towards the earth. Another body is released from the same height exactly one second later. Then the separation between the two bodies, two seconds after the release of the second body is