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A particle of charge +q and mass m moving under the influence of a uniform electric field E and a uniform magnetic field B k follows a trajectory from P to Q as shown in the figure. The velocities at P and Q are  Which of the following statement is correct?
  • a)
  • b)
    Rate of work done by the electric field at P is 
  • c)
    Rate of work done by the electric field at P is zero.
  • d)
    Rate of work done by both the fields at O is zero.
Correct answer is option 'A,B,C'. Can you explain this answer?
Verified Answer
A particle of charge +q and mass m moving under the influence of a uni...
Work done by tire electric force = Change of kinetic energy 

or 
Now. rate of work done = F.v
∴ Rate of work done by the electric field at P

Rate of work done by the electric field at Q 
= qE 2v cos 90" = 0
Work done by the magnetic field is obviously zero at it points. 
So C is not possible
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Most Upvoted Answer
A particle of charge +q and mass m moving under the influence of a uni...
Work done by tire electric force = Change of kinetic energy 

or 
Now. rate of work done = F.v
∴ Rate of work done by the electric field at P

Rate of work done by the electric field at Q 
= qE 2v cos 90" = 0
Work done by the magnetic field is obviously zero at it points. 
So C is not possible
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A particle of charge +q and mass m moving under the influence of a uniform electric field Ei and a uniform magnetic field B k follows a trajectory from P to Q as shown in the figure. The velocities at P and Q areWhich of the following statement is correct?a)b)Rate of work done by the electric field at P isc)Rate of work done by the electric field at P is zero.d)Rate of work done by both the fields at O is zero.Correct answer is option 'A,B,C'. Can you explain this answer?
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A particle of charge +q and mass m moving under the influence of a uniform electric field Ei and a uniform magnetic field B k follows a trajectory from P to Q as shown in the figure. The velocities at P and Q areWhich of the following statement is correct?a)b)Rate of work done by the electric field at P isc)Rate of work done by the electric field at P is zero.d)Rate of work done by both the fields at O is zero.Correct answer is option 'A,B,C'. Can you explain this answer? for Physics 2025 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about A particle of charge +q and mass m moving under the influence of a uniform electric field Ei and a uniform magnetic field B k follows a trajectory from P to Q as shown in the figure. The velocities at P and Q areWhich of the following statement is correct?a)b)Rate of work done by the electric field at P isc)Rate of work done by the electric field at P is zero.d)Rate of work done by both the fields at O is zero.Correct answer is option 'A,B,C'. Can you explain this answer? covers all topics & solutions for Physics 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A particle of charge +q and mass m moving under the influence of a uniform electric field Ei and a uniform magnetic field B k follows a trajectory from P to Q as shown in the figure. The velocities at P and Q areWhich of the following statement is correct?a)b)Rate of work done by the electric field at P isc)Rate of work done by the electric field at P is zero.d)Rate of work done by both the fields at O is zero.Correct answer is option 'A,B,C'. Can you explain this answer?.
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