Advertisements
Advertisements
प्रश्न
Draw a labeled diagram of a step-down transformer.
Advertisements
उत्तर
Step-down transformer
APPEARS IN
संबंधित प्रश्न
Explain the construction and working of the transformer.
Derive an expression for ratio of e.m.f.s and currents in terms of number of turns in primary and secondary coil.
What type of current is transmitted from the power station?
Why is the iron core of a transformer made laminated (thin sheets) instead of being in one solid piece?
State the underlying principle of a transformer. How is the large scale transmission of electric energy over long distances done with the use of transformers?
Name the principle on which functioning of a transformer depends.
A circular coil of 100 turns with a cross-sectional area of 1 m2 is kept with its plane perpendicular to the magnetic field of 1 T. The magnetic flux linkage is ______.
The primary winding of a transformer has 100 turns and its secondary winding has 200 turns. The primary is connected to an a.c supply of 120 V and the current flowing in its is 10 A. The voltage and the current in the secondary are ______.
The self-inductance of a closely wound coil of 200 turns is 10 mH. Determine the value of magnetic flux through the cross-section of the coil when the current passing through the coil is 4 mA.
What is a transformer?
