mec105 - Iron powder sticks to a permanent magnet. If you...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Click to edit Master subtitle style 5/6/09 Iron powder sticks to a permanent magnet. If you sprinkle iron powder on a strip of recorded audio tape, will the iron powder stick? YES
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
5/6/09 Suppose two magnetic tapes have pure tones recorded on them. Tape A has a low-frequency tone while tape B has a high-frequency tone. How does the magnetization of the two tapes differ? A. B’s magnetic domains are deeper than A’s. B. The spacing between A’s magnetic domains is greater than B’s.
Background image of page 2
5/6/09 The ring of a magnetic recording head must be made from A. hard magnetic material. B. soft magnetic material. C. ferrimagnetic material.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
5/6/09 If you install a pocket radio’s batteries backward, it won’t work because its - 1. speaker will move the wrong direction. - 2. parts can only conduct current one way. - 3. batteries will absorb power
Background image of page 4
How many bits are in a byte? A.
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/08/2008 for the course MEC 105 taught by Professor Kincaid during the Spring '08 term at SUNY Stony Brook.

Page1 / 19

mec105 - Iron powder sticks to a permanent magnet. If you...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online