Tag: physics
Questions Related to physics
In a step-up transformer, the turns ratio is $5 : 1$. The primary is connected to a battery of emf $10 V$. The voltage across secondary is ________.
A transformer works on the principle of __________.
A transformer
The purpose of a transformer is to do which of the following?
Complete the given statement, in order for a transformer to work:
Fill the vacant spaces with appropriate terms. The _______ going into a transformer is equal to the _______ going out of the transformer.
In a transformer, the immediate cause of the induced alternating current in the secondary coil is:
A transformer is used to:
A transformer uses iron core to .................... power loses.
The ratio of secondary to the primary tums in a transformer is $3:2.$ If the power out put be $P$, then input power, neglecting all losses, must be equal to: