1) A charge Q is moving in a magnetic field at an angle of 30 degrees with respe

Question

1) A charge Q is moving in a magnetic field at an angle of 30 degrees with respect to the the magnetic field vector. What is the direction of the magnetic force on the moving charge?

A. Its perpendicular to the magnetic field vector

B. Its parallel to the magnetic field vector

C. Its parallel to the velocity vector

D. It creates a 30 degree angle with the magnetic field vector

2) For the same setup of the "Faraday Law" experiment, if the frequency of the magnetic field is changed from 40Hz to 120Hz, how will the emf voltage change?

A. Will increase by 80V

B. Will increase three times

C. Will decrease by 80V

D. Will decrease three times

E. Will change the sign

F. Will not change

Explanation / Answer

1)

A. Its perpendicular to the magnetic field vector     ( Fb = q ( V*B) )

2) B. Will increase three times

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