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A wire coil of length l, mass m, is sliding without friction on conducting rail ax and by as shown in figure. The vertical rails are connected to one another via an external resistance R. The entire circuit is placed in a region of space having a uniform magnetic field B. The field is perpendicular to the plane of circuit and directed outwards. The steady speed of rod cd is
- a)
- b)
- c)
- d)
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
A wire coil of lengthl, massm, is sliding without friction on conducti...
Let wire cd is at distance x from the edge be considered a plane surface bounded by the loop acdb and unit normal vector 
lying in same direction as 
lying in same direction as 
Flux through area acdb
= Blv
Since, Flux is increasing with time, emf will be induced so as to circulate current resulting in weakening of magnetic field. So, current should flow from P to Q.
Current
Lorentz force acting on rod 
= ilB
are perpendicular
(forward up the incline)
= ilB
are perpendicular (forward up the incline)Free body diagram of slide is shown in figure.
There is no acceleration in direction perpendicular to plane of the loop.
So, N = O [N Normal reaction perpendicular to the plane]
But in the plane of the loop, the wire cd slide down due to gravitational force acting downward and lorentz force acting upward.
So, In downward direction
But when we talk about steady speed,
But when we talk about steady speed,
Most Upvoted Answer
A wire coil of lengthl, massm, is sliding without friction on conducti...
Let wire cd is at distance x from the edge be considered a plane surface bounded by the loop acdb and unit normal vector 
lying in same direction as 
lying in same direction as 
Flux through area acdb
= Blv
Since, Flux is increasing with time, emf will be induced so as to circulate current resulting in weakening of magnetic field. So, current should flow from P to Q.
Current
Lorentz force acting on rod 
= ilB
are perpendicular
(forward up the incline)
= ilB
are perpendicular (forward up the incline)Free body diagram of slide is shown in figure.
There is no acceleration in direction perpendicular to plane of the loop.
So, N = O [N Normal reaction perpendicular to the plane]
But in the plane of the loop, the wire cd slide down due to gravitational force acting downward and lorentz force acting upward.
So, In downward direction
But when we talk about steady speed,
But when we talk about steady speed,
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A wire coil of lengthl, massm, is sliding without friction on conducting railaxandbyas shown in figure. The vertical rails are connected to one another via an external resistanceR. The entire circuit is placed in a region of space having a uniform magnetic fieldB. The field is perpendicular to the plane of circuit and directed outwards. The steady speed of rodcd isa)b)c)d)Correct answer is option 'C'. Can you explain this answer?
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A wire coil of lengthl, massm, is sliding without friction on conducting railaxandbyas shown in figure. The vertical rails are connected to one another via an external resistanceR. The entire circuit is placed in a region of space having a uniform magnetic fieldB. The field is perpendicular to the plane of circuit and directed outwards. The steady speed of rodcd isa)b)c)d)Correct answer is option 'C'. Can you explain this answer? for Physics 2024 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about A wire coil of lengthl, massm, is sliding without friction on conducting railaxandbyas shown in figure. The vertical rails are connected to one another via an external resistanceR. The entire circuit is placed in a region of space having a uniform magnetic fieldB. The field is perpendicular to the plane of circuit and directed outwards. The steady speed of rodcd isa)b)c)d)Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Physics 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A wire coil of lengthl, massm, is sliding without friction on conducting railaxandbyas shown in figure. The vertical rails are connected to one another via an external resistanceR. The entire circuit is placed in a region of space having a uniform magnetic fieldB. The field is perpendicular to the plane of circuit and directed outwards. The steady speed of rodcd isa)b)c)d)Correct answer is option 'C'. Can you explain this answer?.
A wire coil of lengthl, massm, is sliding without friction on conducting railaxandbyas shown in figure. The vertical rails are connected to one another via an external resistanceR. The entire circuit is placed in a region of space having a uniform magnetic fieldB. The field is perpendicular to the plane of circuit and directed outwards. The steady speed of rodcd isa)b)c)d)Correct answer is option 'C'. Can you explain this answer? for Physics 2024 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about A wire coil of lengthl, massm, is sliding without friction on conducting railaxandbyas shown in figure. The vertical rails are connected to one another via an external resistanceR. The entire circuit is placed in a region of space having a uniform magnetic fieldB. The field is perpendicular to the plane of circuit and directed outwards. The steady speed of rodcd isa)b)c)d)Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Physics 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A wire coil of lengthl, massm, is sliding without friction on conducting railaxandbyas shown in figure. The vertical rails are connected to one another via an external resistanceR. The entire circuit is placed in a region of space having a uniform magnetic fieldB. The field is perpendicular to the plane of circuit and directed outwards. The steady speed of rodcd isa)b)c)d)Correct answer is option 'C'. Can you explain this answer?.
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