4.9.1 - Torque on a rectangular current loop in a uniform magnetic field
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Practice Questions
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Define torque in the context of a current loop.
💡 Hint: Think about the effect of forces on an object that cause rotation.
What happens to the torque when the angle between the loop's plane and the magnetic field is 90 degrees?
💡 Hint: Consider the sine function's value at this angle.
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Interactive Quizzes
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What does the torque on a rectangular current loop depend on?
💡 Hint: Remember the formula τ = IABsinθ.
True or False: The torque experienced by a current loop is maximum when it is aligned parallel to the magnetic field.
💡 Hint: Visualize how the loop behaves in the magnetic field.
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Challenge Problems
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A rectangular coil with dimensions 0.2 m x 0.1 m carries a current of 4 A and is placed in a magnetic field of 0.3 T. Calculate the torque when it's inclined at an angle of 60 degrees.
💡 Hint: Make sure to convert the angle to radians if needed.
If the same coil is rotated from 0 degrees to 90 degrees, how does the torque change and why?
💡 Hint: Consider the characteristics of the sine function during this range.
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