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A conducting rod of 1 m length and 1 kg mass is suspended by two vertical wires through its ends. An external magnetic field of 2T is applied normal to the rod. Now, the current to be passed through the rod so as to make the tension in the wires zero is : (Take g = 10 ms–2) :-
    Correct answer is '5'. Can you explain this answer?
    Verified Answer
    A conducting rod of 1 m length and 1 kg mass is suspended by two verti...
    Magnetic force on rod = BIℓ
    Weight of the rod = mg
    For no tension in wire, BIℓ = mg
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    A conducting rod of 1 m length and 1 kg mass is suspended by two verti...
    To find the current required to make the tension in the wires zero, we need to consider the forces acting on the rod.

    1. Weight of the rod: The weight of the rod is given by the formula:
    Weight = mass * gravity
    Weight = 1 kg * 10 m/s^2 = 10 N

    2. Magnetic force on the rod: The magnetic force on a current-carrying rod in a magnetic field is given by the formula:
    Magnetic force = current * length * magnetic field strength
    Magnetic force = I * 1 m * 2 T = 2I N

    Now, let's analyze the forces acting on the rod when the tension in the wires is zero:

    1. The weight of the rod is acting downwards.
    2. The magnetic force on the rod is acting upwards.

    Since the tension in the wires is zero, the net force on the rod is also zero. Therefore, the weight of the rod must be equal to the magnetic force on the rod.

    Weight = Magnetic force
    10 N = 2I N

    Solving for I:
    I = 10 N / 2 N = 5 A

    Therefore, the current required to make the tension in the wires zero is 5 A.
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    A conducting rod of 1 m length and 1 kg mass is suspended by two vertical wires through its ends. An external magnetic field of 2T is applied normal to the rod. Now, the current to be passed through the rod so as to make the tension in the wires zero is : (Take g = 10 ms–2) :-Correct answer is '5'. Can you explain this answer?
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    A conducting rod of 1 m length and 1 kg mass is suspended by two vertical wires through its ends. An external magnetic field of 2T is applied normal to the rod. Now, the current to be passed through the rod so as to make the tension in the wires zero is : (Take g = 10 ms–2) :-Correct answer is '5'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A conducting rod of 1 m length and 1 kg mass is suspended by two vertical wires through its ends. An external magnetic field of 2T is applied normal to the rod. Now, the current to be passed through the rod so as to make the tension in the wires zero is : (Take g = 10 ms–2) :-Correct answer is '5'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A conducting rod of 1 m length and 1 kg mass is suspended by two vertical wires through its ends. An external magnetic field of 2T is applied normal to the rod. Now, the current to be passed through the rod so as to make the tension in the wires zero is : (Take g = 10 ms–2) :-Correct answer is '5'. Can you explain this answer?.
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