F = QvBsinq

Where q is the angle between the magnetic field and velocity of the charge.

Lenz's Law states that induced current will create a MAGNETIC field opposing the inducing magnetic field.

(resist change)

Changing magnetic flux induces an emf.

True or False:

1. A magnetic field is generated by a moving charge

2. A moving charge experiences force when moving through a magnetic field.

3. A changing electric field creates a magnetic field.

4. A changing magnetic field creates an electric field.

5. A charge creates a magnetic field

1,2,3,4 are all True.

5 is FALSE! A stationary charge does not create a magnetic field, but a moving charge (current) does.

Alternating Current 

1. What is V_max in terms of V_rms?

2. What is i_max in terms of i_rms?

1. V_{max =}  (2)^^1/2 *V_rms

_{2. imax =}  (2)^^1/2 *i_rms

True or False:

The magnetic field created by a long straight current carrying wire vary inversely with the square of the distance from the wire.