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Transformers only work on ac supply because it principle is mutual induction. DC supply has constant magnitude whereas AC has alternating magnitude. so we can step up or step down current/voltage in transformer in ac only.
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∙ 15y ago
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How does auto transformer work with DC supply?
Transformers don't work with DC supplies - they only work on AC.
Which is used in South African electricity supply network ac or dc why?
AC is preferred in distribution due to the economy, efficiency, and reliability of transformers.
What is a set down transformer?
A stp-down transformer steps voltage down from a high value to a low value. Transformers only work with AC.
Why can't we use DC supply in home?
in our home most of the electrical appliances can work only on ac supply e.g. tubelights, fan, refrigeratorsand so on.else we can also say that dc supply is costlier then ac for the same amount of power.
Does electrical transformer use a DC or AC source?
A transformer is a device to convert high voltage AC to low voltage AC & vice-versa. It works on the principle of induction. Since induction occurs only in an AC supply, a transformer cannot work on DC.. So, it is not possible to convert DC supply to AC using transformer. You would need an inverter to convert DC to AC.
How does auto transformer work with DC supply?
Transformers don't work with DC supplies - they only work on AC.
Transformer are used in circuits containing both dc and ac?
No transformers only work with AC.
Can you harness the 1 100th volts that comes from your tongue using transformers and a dc to ac converter?
No. Transformers only work with AC. Tongue-voltage is DC.
Can you harness the 1 100th of a volt that comes from your tongue using transformers?
No. Transformers only work with AC. Tongue-voltage is DC.
Why do you obtain more dc voltage than ac voltage in power supply design by using transformer?
You don't. Transformers only work with AC voltage. Their input will be an AC waveform, and their output will be an AC waveform. Other electronics are used to convert the stepped down AC waveform from the transformer to DC.
Which is used in South African electricity supply network ac or dc why?
AC is preferred in distribution due to the economy, efficiency, and reliability of transformers.
Does the battery method have any limitations on testing the transformers polarity?
yes its does the higher the current will blow out the transformers
When ac motor is connected with DC supply?
Basically AC motors would not work on DC supply but there's however an exception for a Universal motor also known as a series motor. This is the only motor as far as I know that work on both AC and DC.
Is it appropriate to use dc supply in a transformer?
Not usually. Transformers require a varying magnetic field, which is induced by AC voltage.
Why alternating current is use for electrical system?
The transmission of electrical energy requires very high voltages (for a given load, the higher the supply voltage, the lower the load current). To increase/reduce these voltages, you need transformers. Transformers are AC machines; they do not work with DC.
What is a set down transformer?
A stp-down transformer steps voltage down from a high value to a low value. Transformers only work with AC.
Why transformers must use AC urrent?
Transformers work on the principle of mutual induction. This requires a continuously-changing magnetic field to link the primary and secondary windings, which can only be produced by a changing current in the primary winding.
