PHYS 1112 Module 11 Activity 2

Lenz’s Law

Practice 11.2.4
A wire loop is being pulled through a uniform magnetic field (the X’s show the field pointing into the page) that suddenly ends. The loop is pulled to the right so that it is pulled out of the magnetic field.

What is the direction of the induced current?
Check your answer: A. clockwise
Practice 11.2.5
A wire loop is being pulled away from a current-carrying wire.

What is the direction of the induced current in the circular loop?
Check your answer: A. clockwise
Practice 11.2.6
A wire loop is being pulled along the direction of a current-carrying wire.

What is the direction of the induced current in the circular loop?
Check your answer: C. no induced current
Practice 11.2.7
Two rectangular loops of wire lie in the same plane as shown in the figure.

If the current I in the outer loop is counterclockwise and increases with time, what is true of the current induced in the inner loop? More than one statement may be correct.
Check your answer: B. The induced current in the inner loop flows clockwise and D. The induced current’s magnitude depends on the dimensions of the loops