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This is because the current kills the magnetized/domain particles and so it becomes un-magnetized.
When the domains are magnetized they all face the direction of the magnet but when they have been destroyed by an AC current... they are pretty much jumbled together!
Wiki User
∙ 12y ago
Wiki User
∙ 14y agobecause alternating current or AC can go in different directions making the different domains (like lots of mini magnets) face different ways and DC or direct current goes the same way making all the domains face the same way.
Wiki User
∙ 12y agobecause spins the domains round and makes them point randomly
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How can you block ac current?
You can block AC current by using a filter with a pass-band that is outside the frequency of the AC current.
What device converts dc current to ac current?
A "Rectifier" converts AC current to pulsating DC current.
What current flows in one direction then the opposite direction?
AC, Alternating Current.
What is the sign for ac and DC current?
AC means alternating current DC means direct current there is no polarity reversal
An AC has a peak value of 12 amps what is the average value of the current?
i think average value of current in ac current is zero.
Does a fan run on a dc current or ac current?
AC
How can you block ac current?
You can block AC current by using a filter with a pass-band that is outside the frequency of the AC current.
What device converts dc current to ac current?
A "Rectifier" converts AC current to pulsating DC current.
Did ceiling fan operate on dc or ac current?
ac current
Why is it incorrect to say AC current?
ac stands for alternating current so ac current means alterneting current current. its like entering your pin number on an ATM machine.
What current is produced in ocean thermal energy conversion dc current or ac current?
ac
What current flows in one direction then the opposite direction?
AC, Alternating Current.
What is the sign for ac and DC current?
AC means alternating current DC means direct current there is no polarity reversal
What are the two kinds electricity?
Perhaps you are referring to DC and AC? DC is direct current - current flows in a single direction. In AC (alternating current), the current regularly changes its direction.Perhaps you are referring to DC and AC? DC is direct current - current flows in a single direction. In AC (alternating current), the current regularly changes its direction.Perhaps you are referring to DC and AC? DC is direct current - current flows in a single direction. In AC (alternating current), the current regularly changes its direction.Perhaps you are referring to DC and AC? DC is direct current - current flows in a single direction. In AC (alternating current), the current regularly changes its direction.
What is the ac motor starting current?
what is the starting current of 2ton window ac voltas
How did the AC current help mankind?
without the AC current, we wouldn't have air conditioning.
Electric current changes direction repeatedly is called?
AC current (alternating current) like in a wall outlet
