1. Which of the following does not use magnetism to store information?

a. videotape

b. ATM cards

c. MRT/LRT ticket

d. compact disc

2. WHich determines the direction of the force on a current-carrying wire in a magnetic field?

A. direction of current in the wire

B. amount of current in the wire

C. direction of magnetic field

a. A only

b. A and B only

c. A and C only

d, B and C only

e. A, B and C