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  • 1(current)
Q. No.
As per the figure a point charge \(+q\) is placed at the origin \(\mathrm{O}\). Work done in taking another point charge \(-Q\) from the point \(\mathrm{A}(0, \mathrm{a})\) to another point \(\mathrm{B}(\mathrm{a},0)\) along the straight path \(\mathrm{AB}\) is:
                    
1. \(\Big(\frac{-qQ}{4\pi\varepsilon_0}\frac{1}{a}\Big)\sqrt {2}\)

2. \(\Big(\frac{qQ}{4\pi\varepsilon_0}\frac{1}{a}\Big)\sqrt{2}\)

3. \(\Big(\frac{qQ}{4\pi\varepsilon_0}\frac{1}{a}\Big)\frac{1}{\sqrt{2}}\)

4. zero
Subtopic:  Electric Potential Energy |
 79%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Given below are two statements: 


Assertion (A): An isolated system consists of two particles of equal masses \(m=10\) gm and charges \(q_1=1~\mu \)C and  \(q_2=-1~\mu \)C as shown in the figure. The initial separation of both charges is \(l=1\) m. Both the charges are given initial velocities  \(v_1=1\) ms-1 and  \(v_2=2\) ms-1 towards the right. The maximum separation between the charges is infinite.
Reason (R): The total energy (Kinetic energy + electrostatic potential energy) of the given two-particle system is positive and the initial velocity of separation is positive.

1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Electric Potential Energy |
 59%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
  • 1(current)
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