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Transformers change voltage and current from the primary side to the secondary side, while keeping the power in equal to the power out (minus losses). Any transformer will increase the voltage applied to the secondary (or low voltage side) to the primary (or higher voltage side).
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoA transformer uses induction from one coil (primary), to the other coil (secondary). Alternating Current in a conductor will produce a magnetic field around the conductor. This magnetic field will expand and contract as the current alternates, the lines of flux will pass through the windings of the secondary coil inducing voltage into the secondary coil. If the turns ratio of the two coils was 2:1 and you applied 480 volts to the primary, you would get 240 volts out the secondary. If the turns ratio of the two coils was 1:2 and you applied 240 volts to the primary, you would get 480 volts out the secondary.
Wiki User
∙ 12y agoUsually a transformer is a device that takes a high voltage cable and distributes it into several lower voltage cables. So, some transformers decrease voltage, others increase voltage.
Manh of the power adapters which plug into a wall outlet have transformers which lower the voltage.
There are transformers which don't change the voltage. The value of output voltage is the same as the input voltage. They are isolating transformers.
Wiki User
∙ 13y agoTransformer is a device used to transform electricity from one circuit to another without any change in frquency. It may be step up or step down or equal depending upon the connectio
A: Mostly for isolation and transferring of power to a level easily to use
Wiki User
∙ 10y agoA transformer can do either function. A step up transformer will raise the voltage from a lower value to a higher voltage value. Likewise a step down transformer will lower the voltage from a higher voltage to a lower voltage value.
Wiki User
∙ 13y agoTransformer work on induction principle . when we energies the one coil (say primary) and due to induction our second coil get energies .
hence voltage send one coil to another, and we known that induced voltage depend upon number of turns (say N)
N1= no. of turn primary coil
N2= no. of turn secondary coil.
hence by changing these no. of turn we can adjust of voltage ..
hence transformer work as step Up or Step Down for voltages .
Er.piyush(ece)
Wiki User
∙ 12y agothe transformer voltage can be increased simply by connecting the stepup transformer in series to it. the stepup transformer is nothing but its secondary windings should be more when compared to its primary windings.
Wiki User
∙ 11y agoThe metaphor of stepping down is that you are going to a lower level of voltage. So no, a step down transformer does not increase voltage, it decreases it.
Wiki User
∙ 10y agoBy decreasing the current with the resistance offered in the circut in step down transformers the voltage can be decreased.
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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.
Why transformer is only used instead of any other device?
A transformer is the primary device which transforms voltage to a higher or lower voltage. In electronics, capacitors and resistors perform this function.
What or Which type of transformer can serve as both a ratio device and an isolating device?
Instrument Transformer
Explain differancnce between instrument current transformer and measuring current transformer?
Current transformer is a device used to measure the flow of current through a power system and the measured current is inputted to a protective relay system. It is used to detect system malfunction. Current transducer is a device used to measure AC and DC current based on the halt-effect technology.
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 is a device used to change voltage of an alternating current?
A transformer.
What is the operation of a transformer?
A transformer is a static device which is used to step up or step down the voltage in a powered circuit.
What device can be used to increase current in a DC circuit?
Transformer or instrument transformer. It can increase and decrease current output.
How do you explain about transformer?
A Transformer is a static device which is used to step up(or)step down the voltage in a transforming conductor
What is linear transformer?
The Linear Variable Differential Transformer is a type of electrical transformer used for measuring linear displacement. A counterpart to this device that is used for measuring rotary displacement is called a Rotary Variable Differential Transformer.
What is the transformer and starter?
A transformer is a static device which is used to step up or step down voltage without changing frequency. A starter is a device used to start the motors.It is used to limit the starting current to a safe value.
What Device used to select amount of voltage in primary coil of step up transformer?
There is no selective device to determine the amount of voltage. A transformer is selected by the voltage available at the site for the primary and the load on the secondary side of the transformer.
Why transformer is only used instead of any other device?
A transformer is the primary device which transforms voltage to a higher or lower voltage. In electronics, capacitors and resistors perform this function.
What or Which type of transformer can serve as both a ratio device and an isolating device?
Instrument Transformer
A transformer is a device used to increase or decrease dc voltage?
The answer below this is not correct, a transformer can only be used on AC not DC. So the statement, "A transformer is a device used to increase or decrease DC voltage" is false The above comment relates to an entry which was obviously deleted. However, the above comment is also false. The ignition coil in of a petrol engine is a transformer, a pulse transformer. It's d.c. which passes through the primary, not a.c. <<>> A: this is a passive component as opposed to a device that is active answer is yes it does that but more importantly it isolates and match in/out impedance's
Explain differancnce between instrument current transformer and measuring current transformer?
Current transformer is a device used to measure the flow of current through a power system and the measured current is inputted to a protective relay system. It is used to detect system malfunction. Current transducer is a device used to measure AC and DC current based on the halt-effect technology.
