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What type of a device is used to increase or decrease the voltage in an electric circuit?
Wiki User
∙ 12y ago
A transformer. A small example is the coil in a motorcar. A transformer, in a power line, only changes voltage in one direction under normal usage. At distribution voltages, about 8360 VAC, the voltage is monitored by a regulator. A regulator either increases or decreases the voltage automatically to insure the desired voltage is steady. This regulated voltage is then fed to Transformers to provide customers with a regulated voltage at the desired voltage.
Wiki User
∙ 14y ago
Wiki User
∙ 9y agoA device that is used to increase or decrease a voltage is called a transformer. Increasing the voltage uses a step up transformer and decreasing the voltage to a lower value is a step down transformer.
Wiki User
∙ 12y agoThe only passive device that can do that is a transformer,
and it only works with AC.
There are plenty of active devices that can do it ... those that
consume power in order to do the job.
Also plenty of passive devices that can reduce a voltage but can't
increase it.
Wiki User
∙ 12y ago.transformer. because it acts as voltage regulator
Wiki User
∙ 12y agoA potentiometer is used to vary voltage in a circuit, a rheostat is used to vary current in a circuit.
Wiki User
∙ 8y agoWiki User
∙ 12y agoA transformer.
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What causes a electric current in a electric circuit?
Voltage causes current to flow in an electric circuit.
What makes electric charges move through wires in an electric circuit?
A voltage.
Why is alternating current more effective at long distance travel than direct current?
Transformers increase and decrease voltage as needed. PLATO
Can you increase or decrease an ac voltage?
yes, by stepping it up or down with a transformer.
What will cause an increase in current flow in a simple series circuit?
Increase current by either increasing the voltage or decreasing the resistance.
When are electromagnets used to increase or decrease the voltage of electric currents?
Electromagnets are never used to increase or decrease the voltage in a circuit. These magnets in conjunction with a rotating device (an armature) can create a voltage but the do not have any effect on a voltage.
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 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 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.
Should you increase voltage or resistance to increase flow in a circuit?
To increase (current) flow in a circuit you increase voltage (or decrease resistance). Ohm's Law: Current = Voltage divided by resistance
What does an increase in voltage cause in an electric circuit?
It causes a proportional increase in current.
Is the increase in voltage causes a greater electric resistance in a circuit?
No, the resistance in a circuit does not change when voltage changes. Resistance is an inherent property of the circuit.
When electric current is flowing in a circuit if the voltage applied to the circuit is increased the?
Correct Answer= "the current will increase"
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
How does the potential difference across the electric circuit affect current?
In a very simple way. As long as nothing changes in the circuit, the current that flows from the power supply or battery into the circuit is directly proportional to the voltage of the supply. -- If you double the voltage across the ends of the circuit, the current will double. -- If you turn the voltage up to 3.4027 times its original value, the current will increase to 3.4027 times its original value. -- If you decrease the voltage by 81.7 percent, the current will decrease by 81.7 percent.
Doubling the resistance in a circuit will increase or decrease amperage?
If voltage remains constant and resistance is increased, the amperage will decrease per Ohm's Law.
What type of device is used to increased or decrease the voltage of an electric current?
In an alternating current circuit the voltage can be stepped up ordown efficiently with a transformer.
