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A conducting rod of length l is moved at constant velocity v0 on two parallel, conducting, smooth, fixed rails, that are placed in a uniform constant magnetic field B perpendicular to the plane of the rails as shown in figure. A resistance R is connected between the two ends of the rail. Then which of the following is/are correct:
  • a)
    Lenz’s Law is not satisfied if the rod is accelerated by external force 
  • b)
    If resistance R is doubled then power required to maintain the constant velocity v0 becomes half 
  • c)
    If applied external force is doubled than a part of external power increases the velocity of rod 
  • d)
    The thermal power dissipated in the resistor is equal to rate of work done by external person pulling the rod 
Correct answer is option 'B,C,D'. Can you explain this answer?
Verified Answer
A conducting rod of lengthlis moved at constant velocity‘v0&rsqu...
Rate of work done by external agent is :
and thermal power dissipated in the resistor = eI = (BvL)I
clearly both are equal.
If applied external force is doubled, the rod will experience a net force and hence acceleration. As a result velocity increases.
Since I = e/R
On doubling ‘R’, current and hence required power becomes half.
Since, P = BILv
The correct answers are: The thermal power dissipated in the resistor is equal to rate of work done by external person pulling the rod, If applied external force is doubled than a part of external power increases the velocity of rod, If resistance R is doubled then power required to maintain the constant velocity v0 becomes half
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Most Upvoted Answer
A conducting rod of lengthlis moved at constant velocity‘v0&rsqu...
Rate of work done by external agent is :
and thermal power dissipated in the resistor = eI = (BvL)I
clearly both are equal.
If applied external force is doubled, the rod will experience a net force and hence acceleration. As a result velocity increases.
Since I = e/R
On doubling ‘R’, current and hence required power becomes half.
Since, P = BILv
The correct answers are: The thermal power dissipated in the resistor is equal to rate of work done by external person pulling the rod, If applied external force is doubled than a part of external power increases the velocity of rod, If resistance R is doubled then power required to maintain the constant velocity v0 becomes half
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A conducting rod of lengthlis moved at constant velocity‘v0’on two parallel, conducting, smooth, fixed rails, that are placed in a uniform constant magnetic fieldBperpendicular to the plane of the rails as shown in figure.AresistanceRis connected between the two ends of the rail. Then which of the following is/are correct:a)Lenz’s Law is not satisfied if the rod is accelerated by external forceb)If resistanceRis doubled then power required to maintain the constant velocityv0becomes halfc)If applied external force is doubled than a part of external power increases the velocity of rodd)The thermal power dissipated in the resistor is equal to rate of work done by external person pulling the rodCorrect answer is option 'B,C,D'. Can you explain this answer?
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A conducting rod of lengthlis moved at constant velocity‘v0’on two parallel, conducting, smooth, fixed rails, that are placed in a uniform constant magnetic fieldBperpendicular to the plane of the rails as shown in figure.AresistanceRis connected between the two ends of the rail. Then which of the following is/are correct:a)Lenz’s Law is not satisfied if the rod is accelerated by external forceb)If resistanceRis doubled then power required to maintain the constant velocityv0becomes halfc)If applied external force is doubled than a part of external power increases the velocity of rodd)The thermal power dissipated in the resistor is equal to rate of work done by external person pulling the rodCorrect answer is option 'B,C,D'. 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 conducting rod of lengthlis moved at constant velocity‘v0’on two parallel, conducting, smooth, fixed rails, that are placed in a uniform constant magnetic fieldBperpendicular to the plane of the rails as shown in figure.AresistanceRis connected between the two ends of the rail. Then which of the following is/are correct:a)Lenz’s Law is not satisfied if the rod is accelerated by external forceb)If resistanceRis doubled then power required to maintain the constant velocityv0becomes halfc)If applied external force is doubled than a part of external power increases the velocity of rodd)The thermal power dissipated in the resistor is equal to rate of work done by external person pulling the rodCorrect answer is option 'B,C,D'. 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 conducting rod of lengthlis moved at constant velocity‘v0’on two parallel, conducting, smooth, fixed rails, that are placed in a uniform constant magnetic fieldBperpendicular to the plane of the rails as shown in figure.AresistanceRis connected between the two ends of the rail. Then which of the following is/are correct:a)Lenz’s Law is not satisfied if the rod is accelerated by external forceb)If resistanceRis doubled then power required to maintain the constant velocityv0becomes halfc)If applied external force is doubled than a part of external power increases the velocity of rodd)The thermal power dissipated in the resistor is equal to rate of work done by external person pulling the rodCorrect answer is option 'B,C,D'. Can you explain this answer?.
Solutions for A conducting rod of lengthlis moved at constant velocity‘v0’on two parallel, conducting, smooth, fixed rails, that are placed in a uniform constant magnetic fieldBperpendicular to the plane of the rails as shown in figure.AresistanceRis connected between the two ends of the rail. Then which of the following is/are correct:a)Lenz’s Law is not satisfied if the rod is accelerated by external forceb)If resistanceRis doubled then power required to maintain the constant velocityv0becomes halfc)If applied external force is doubled than a part of external power increases the velocity of rodd)The thermal power dissipated in the resistor is equal to rate of work done by external person pulling the rodCorrect answer is option 'B,C,D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Physics. Download more important topics, notes, lectures and mock test series for Physics Exam by signing up for free.
Here you can find the meaning of A conducting rod of lengthlis moved at constant velocity‘v0’on two parallel, conducting, smooth, fixed rails, that are placed in a uniform constant magnetic fieldBperpendicular to the plane of the rails as shown in figure.AresistanceRis connected between the two ends of the rail. Then which of the following is/are correct:a)Lenz’s Law is not satisfied if the rod is accelerated by external forceb)If resistanceRis doubled then power required to maintain the constant velocityv0becomes halfc)If applied external force is doubled than a part of external power increases the velocity of rodd)The thermal power dissipated in the resistor is equal to rate of work done by external person pulling the rodCorrect answer is option 'B,C,D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A conducting rod of lengthlis moved at constant velocity‘v0’on two parallel, conducting, smooth, fixed rails, that are placed in a uniform constant magnetic fieldBperpendicular to the plane of the rails as shown in figure.AresistanceRis connected between the two ends of the rail. Then which of the following is/are correct:a)Lenz’s Law is not satisfied if the rod is accelerated by external forceb)If resistanceRis doubled then power required to maintain the constant velocityv0becomes halfc)If applied external force is doubled than a part of external power increases the velocity of rodd)The thermal power dissipated in the resistor is equal to rate of work done by external person pulling the rodCorrect answer is option 'B,C,D'. Can you explain this answer?, a detailed solution for A conducting rod of lengthlis moved at constant velocity‘v0’on two parallel, conducting, smooth, fixed rails, that are placed in a uniform constant magnetic fieldBperpendicular to the plane of the rails as shown in figure.AresistanceRis connected between the two ends of the rail. Then which of the following is/are correct:a)Lenz’s Law is not satisfied if the rod is accelerated by external forceb)If resistanceRis doubled then power required to maintain the constant velocityv0becomes halfc)If applied external force is doubled than a part of external power increases the velocity of rodd)The thermal power dissipated in the resistor is equal to rate of work done by external person pulling the rodCorrect answer is option 'B,C,D'. Can you explain this answer? has been provided alongside types of A conducting rod of lengthlis moved at constant velocity‘v0’on two parallel, conducting, smooth, fixed rails, that are placed in a uniform constant magnetic fieldBperpendicular to the plane of the rails as shown in figure.AresistanceRis connected between the two ends of the rail. Then which of the following is/are correct:a)Lenz’s Law is not satisfied if the rod is accelerated by external forceb)If resistanceRis doubled then power required to maintain the constant velocityv0becomes halfc)If applied external force is doubled than a part of external power increases the velocity of rodd)The thermal power dissipated in the resistor is equal to rate of work done by external person pulling the rodCorrect answer is option 'B,C,D'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A conducting rod of lengthlis moved at constant velocity‘v0’on two parallel, conducting, smooth, fixed rails, that are placed in a uniform constant magnetic fieldBperpendicular to the plane of the rails as shown in figure.AresistanceRis connected between the two ends of the rail. Then which of the following is/are correct:a)Lenz’s Law is not satisfied if the rod is accelerated by external forceb)If resistanceRis doubled then power required to maintain the constant velocityv0becomes halfc)If applied external force is doubled than a part of external power increases the velocity of rodd)The thermal power dissipated in the resistor is equal to rate of work done by external person pulling the rodCorrect answer is option 'B,C,D'. Can you explain this answer? tests, examples and also practice Physics tests.
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