A circular loop of wire is positioned half in and half out of a square region of uniform magnetic field directed into the page, as shown. To induce a clockwise current in this loop:
Correct answer: A. Move it in +x direction
- A. Move it in +x direction
- B. Move it in -y direction
- C. Move it in +y direction
- D. Move it in -x direction
Explanation
When circular loop of wire moves in +x direction, the magnetic flux will decrease. So, according to Lenz's law clock wise current will be induced in the loop. Slope of 2 < Slope of 4 < Slope of 3 < Slope I.
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About Electromagnetism
Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.
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