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प्रश्न
What is the function of a step-up transformer?
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उत्तर
We use a step-up transformer to push up or step up the voltage of a given a.c. source.
संबंधित प्रश्न
Which coil of a step up transformer is made thicker and why?
You are required to make an electromagnet from a soft iron bar by using a cell, an insulated coil of copper wire and a switch. (a) Draw a circuit diagram to represent the process. (b) label the poles of the electromagnet.
How are the e.m.f in the primary and secondary coils of a transformer related with the number of turns in these coils?
The input and output voltage of a transformer are 220 V and 44 V respectively. Find: the turns ratio.
Describe, with the help of a suitable diagram, the working principle of a step-up transformer. Obtain the relation between input and output voltages in terms of the number of turns of primary and secondary windings and the currents in the input and output circuits.
State the principle of working of a transformer. Can a transformer be used to step up or step down a d.c. voltage? Justify your answer.
The primary and secondary coils of a transformer each have an inductance of 200 x 10-6 H. The mutual inductance between the windings is 4 x 10-6 H. What percentage of the flux from one coil reaches the other?
Distinguish between Step up and Step Down Transformer.
Mention the various energy losses in a transformer.
Define a Transformer.
