Why current is increased in step down transformer?
A transformer whose primary coil has more turns than its secondary coil is called a step-down transformer because it reduces voltage — that is, the voltage at the secondary coil is less than the voltage at the primary coil. … Likewise, if the voltage decreases, the current must increase.
What does a transformer increase?
A transformer converts alternating current (AC) from one voltage to another voltage. It has no moving parts and works on a magnetic induction principle; it can be designed to “step-up” or “step-down” voltage. So a step up transformer increases the voltage and a step down transformer decreases the voltage.
Which quantity is increased in step-down?
Complete answer: It converts high voltage, low current power into a low voltage, high current power, in short a step-down transformer reduces the output voltages. If a step-down transformer, voltage decreases corresponding current increases.
Does a step-down transformer increase or decrease the current?
Step-down transformers are used to decrease or ‘step-down’ voltages. These are used when voltages need to be lowered for use in homes and factories. A step-down transformer has fewer turns of wire on the secondary coil than on the primary coil. This transformer steps down the voltage by increasing the current.
How does a step up transformer?
When a transformer steps up voltage, current is stepped down. A step up transformer at the power station steps up the voltage and consequently steps down the current. … Transmitting small current greatly reduces heat lost in the cables, which in turn reduces the number of power stations needed.
What is step-up and step-down transformer 12?
In step-up transformers, voltage is increased and current strength is decreased whereas in step-down transformers, voltage is decreased and the current strength is increased.
Which of the following quantity is stepped up in a transformer situated in generating station?
Answer: The correct answer is “power“.