What is the life of permanent magnet and what type of
magnet is used in speakers?
- 1 Answers
- 4400 Views
- I also Faced
- E-Mail Answers
Answer Posted / meetrandom
Life of a magnet is the time through which it can retain its
magnetism. For a permanent magnet, its domains are always
aligned properly; so its life is theoretically infinite.
However, in practical case, earths magnetism tends to induce
polarities according to the alignment of the magnet. Still
the life is very high(several years or centuries if left
undisturbed)
For obvious reasons, a permanent magnet is normally used in
speakers
| Is This Answer Correct ? | 8 Yes | 0 No |
Post New Answer View All Answers
Explain interference?
What is photometry?
Explain reflection of light?
Explain what does gravitational force depend on?
Which waves are used in sonography?
why sink condition occur in vivo.???
What the postulates of planck’s quantum theory? : quantum physics
How do you convert from pascal to torr?
What is the difference between dynamic strain aging and strain aging?
Explain radio telescopes?
What is ultrasonic sound?
Explain the name for the physical constant with a value of 6.62 x 10-27 erg seconds?
Explain what is free fall acceleration?
Explain the difference between optical zoom, digital zoom and smart zoom?
Why does a glass filled with water shatter when you run your finger along the rim of the glass?
