Question

A square, single-turn coil with side length 0.2 m, is placed with its plane perpendicular to a constant magnetic field. An ? of 2.59 mV is induced in the winding when the area of the coil decreases at a rate of 0.898 m²/s. What is the magnitude of the magnetic field? Answer in units of T. Lenz's law is about the current induced in a loop of wire when the magnetic flux through the loop changes. This induced current is always 1. in the same direction as that of the current producing the original flux. 2. clockwise. 3. in a direction opposite that of the current producing the original flux. 4. counterclockwise. 5. in such a direction as to oppose the change in the original flux.

          A square, single-turn coil with side length 0.2 m, is placed with its plane perpendicular to a constant magnetic field. An ? of 2.59 mV is induced in the winding when the area of the coil decreases at a rate of 0.898 m²/s.
What is the magnitude of the magnetic field?
Answer in units of T.

Lenz's law is about the current induced in a loop of wire when the magnetic flux through the loop changes.
This induced current is always

1. in the same direction as that of the current producing the original flux.
2. clockwise.
3. in a direction opposite that of the current producing the original flux.
4. counterclockwise.
5. in such a direction as to oppose the change in the original flux.

A square, single-turn coil with side length 0.2 m, is placed with its plane perpendicular to a constant magnetic field. An ? of 2.59 mV is induced in the winding when the area of the coil decreases at a rate of 0.898 m²/s.
What is the magnitude of the magnetic field?
Answer in units of T.

Lenz's law is about the current induced in a loop of wire when the magnetic flux through the loop changes.
This induced current is always

1. in the same direction as that of the current producing the original flux.
2. clockwise.
3. in a direction opposite that of the current producing the original flux.
4. counterclockwise.
5. in such a direction as to oppose the change in the original flux.

Added by David A.

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