0
How do the maximum and minimum voltages depend on the speed of the magnet?
Wiki User
∙ 13y ago
The induced emf ie voltage in a conductor or coil is directly proportional to the rate at which the magnetic flux linked with it changes. So when the speed is less then dB/dt will be less and so induced voltage becomes less. If the speed is high then dB/dt will be very much high and so large emf will be induced.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
Do a Clinical thermometer needs a magnet?
No, a clinical thermometer does not need a magnet. You may be thinking of a Maximum/Minimum Thermometer which has a U-tube containing mercury which expands and contracts as the temperature changes. Each arm of the U-tube contains mercury upon the upper surface of which are tiny floats made of steel (which floats on mercury) with tiny springs on their sides so that they grip the tube inside when the mercury does not move them any more. One of the floats records the highest temperature to which it was pushed, and the other indicates the coldest temperature to which it was pushed. So you are able to find out what the actual maximum and minimum temperatures were during the past 24 hours. So why do we need a magnet? It's purpose is to attract the steel floats back to their positions just sitting on top of each mercury column.
What is the reason that a cold magnet is stronger than a hot or room temperature magnet?
A cold magnet attracts more than a hot magnet. This helps the flow of electricity which therefore helps the electric field, which therefore helps the magnetic field. They use cold magnets to power the LHC which collides hydrogen atoms. Obviously the cold magnet is very attracting.
What is bar mangnet?
It is a rectangular shaped magnet having 2 poles i.e south pole and north pole.Its strength is maximum at poles.
What is the scientific name of a magnet?
magnet :)
What is a lifting magnet?
A lifting magnet is an electromagnet that is meant to hold or move material that comes in contact with the magnet. This is the opposite of a traction magnet.
What is the minimum and maximum number of poles a magnet can have?
it has 2 north and south
How do you reset a maximum and minimum thermometer with magnet?
Touch each end
What is the minimum range of a magnet?
zero
Which magnet is used to create maximum inductance in coil?
Which magnet is use to create maximum inductance in coil?Read more: Which_magnet_is_use_to_create_maximum_inductance_in_coil
What does the direction of the magnetic field depend on?
it depends on the north of a magnet and the south of a magnet
How many steelpins can a magnet hold?
it depend on the strength of magnet. if i had a gauss measurement i could tell you.
What do magnetic properties of a magnet depend on?
atomic structure
Does a magnet pick up a paper clip in oil?
It will depend on the strength of the magnet. If there is any strength to it at all, there shouldn't be a problem.
Does the size of a magnet hold more paper clips?
The bigger and stronger the magnet, the more it can carry
Would increasing the length of a rod in an electromagnet increase it's magnetism?
No, as in this case,the rod is the magnet,and the strength of a magnet does not depend on its size.
Is a magnet an isulator?
That might depend on what material the magnet is made from, but usually magnets are made from metals or alloys, i.e., electrical conductors.
Why steel pointer is used in maximum and minimum thermometer?
These wee steel bars are known as riders, and they mark the travel extent of the Mercury column. They are held in place by a feeble magnet. When the reset button is pushed, it moves the magnet away from the tube, and the riders will settle.
