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Should you use a transformer to step down the voltage before putting it in an electric coil because it will increase the current?
MikeWagner
That does seem like a good idea at first, but it has one really major problem, and
it can never be used:
It's true, you want a large current in the coil, because that makes for a strong
electromagnet. But the current in an electromagnet must be DC, and Transformers
only work with AC.
(If the input to a transformer is DC, the output from it is smoke.)
AnswerA step-down transformer does not 'step up' current, as the question implies. The secondary current is determined by the load attached to the secondary winding. And, further to the first answer, electromagnets (if that's what the load is) work on both a.c. and d.c.
Wiki User
∙ 11y ago
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What type of device is used to increase or decrease the voltage of an electric current?
The device used to increase or decrease the voltage of an electric circuit is a step up transformer or a step down transformer respectively. A Variable Resistor
What device can be used to increase current in a DC circuit?
Transformer or instrument transformer. It can increase and decrease current output.
What type of device is used to increase to decrease the voltage of an electric current?
In an alternating current circuit the voltage can be stepped up ordown efficiently with a transformer.
What type of device is used to decrease or increase the voltage of an electric current?
In an alternating current circuit the voltage can be stepped up ordown efficiently with a transformer.
What type of device is used to increase or decrease the voltage of an electric current-?
In an alternating current circuit the voltage can be stepped up ordown efficiently with a transformer.
A transformer can increase or deacrease what?
Voltage and current.
How is current controlled in welding transformer?
in welding machine, the transformer used is basically a current transforrmer. so by changing the tap of secondary side of transformer, we can increase or decrease the current in the transformer.
What type of device is uses to increase or decrease the voltage of an electric current?
The device is called a "variac' and it is a type of transformer. It has a variable voltage ouput.
How do you increase the amount of current created by a generator?
You can use a transformer to increase the current. Note that this will also decrease the voltage. The total energy will not increase; it will decrease slightly, due to losses in the transformer.
A transformer can only the voltage of an alternating current?
A transformer can only increase or decrease the voltage of an alternating current, and it is called step-up transformer or step-down transformer accordingly.
Why series operation of transformer is not prefered?
current increase in series operatio and transformer will b damaged
How can we increase the magnitude of the magnetic field of an electric magnet?
Increase the magnitude of the electric current.
