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The amount of work done in moving a unit positive charge through distance of 10 cm on an equipotential surface is
- a)100 joule
- b)10 cm
- c)1/10 cm
- d)Zero
Correct answer is option 'D'. Can you explain this answer?
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Equipotential Surface and Work Done
Equipotential Surface: An equipotential surface is a surface in the electric field where the potential at each point on the surface is the same. It means, if we move a charge from one point to another on an equipotential surface, no work is done.
Work Done: Work done is defined as the product of the force applied on an object and the displacement of the object in the direction of the force.
Explanation:
In this question, we are asked to find the amount of work done in moving a unit positive charge through a distance of 10 cm on an equipotential surface. Since the surface is equipotential, it means the potential at each point on the surface is the same. Therefore, there is no potential difference between the starting point and the ending point of the charge.
As per the definition of work done, if there is no potential difference, there will be no electric field and hence no force acting on the charge. Therefore, the work done in moving the charge will be zero.
Hence, the correct answer is option 'D' - Zero.
Conclusion
In conclusion, when a charge is moved on an equipotential surface, no work is done since the potential at each point on the surface is the same.
Equipotential Surface: An equipotential surface is a surface in the electric field where the potential at each point on the surface is the same. It means, if we move a charge from one point to another on an equipotential surface, no work is done.
Work Done: Work done is defined as the product of the force applied on an object and the displacement of the object in the direction of the force.
Explanation:
In this question, we are asked to find the amount of work done in moving a unit positive charge through a distance of 10 cm on an equipotential surface. Since the surface is equipotential, it means the potential at each point on the surface is the same. Therefore, there is no potential difference between the starting point and the ending point of the charge.
As per the definition of work done, if there is no potential difference, there will be no electric field and hence no force acting on the charge. Therefore, the work done in moving the charge will be zero.
Hence, the correct answer is option 'D' - Zero.
Conclusion
In conclusion, when a charge is moved on an equipotential surface, no work is done since the potential at each point on the surface is the same.
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The amount of work done in moving a unit positive charge through distance of 10 cm on an equipotential surface isa)100 jouleb)10 cmc)1/10 cmd)ZeroCorrect answer is option 'D'. Can you explain this answer?
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