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Class 12 Physics Practice Test: Magnetic Field on the Axis of a Circular Current Loop
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Class 12 Physics Practice Test: Magnetic Field on the Axis of a Circular Current Loop
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5 Questions

1. A horizontal overhead power line carries a current of 100A in east to west direction. What is the magnitude and direction of the magnetic field due to the current, 2 m below the line?
2. Pick out the expression for magnetic field strength at any point at the center of a circular loop from the following?
3. When an arc of a circle of radius R subtends an angle of \(\frac {\pi }{4}\) at the center, and carries a current I, the magnetic field at the center is B = \(\frac {\mu_o I}{16R}\).
4. The magnetic field due to a current carrying circular loop of radius 4 cm at a point on the axis at a distance of 7 cm from the center is 48 μT. What will be the value at the center of the loop?
5. Identify the expression for the magnetic field on the axis of circular loop.

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