Q338
Where would you find a magnetic strip?
A.
Speakers
B.
Credit card
AnswerC.
Smart card
D.
All of the above
Answer: Option B
Solution
Answer: Option B
Solution:
The stripe on the back of a credit card is a magnetic stripe, often called a magstripe. The magstripe is made up of tiny iron-based magnetic particles in a plastic-like film. Each particle is really a very tiny bar magnet about 20 millionths of an inch long.