Advertisements
Advertisements
Question
Devices which is used to convert high alternating current to low alternating current is ______.
Solution
Devices which is used to convert high alternating current to low alternating current is Step down transformer
APPEARS IN
RELATED QUESTIONS
Derive an expression for ratio of e.m.f.s and currents in terms of number of turns in primary and secondary coil.
Express the turn ratio in terms of voltages.
Name two kind of energy loss in a transformer. How is it minimized?
What is the ideal transformer?
Name the principle on which functioning of a transformer depends.
(i) Draw a clear labelled diagram of an electric bell.
(ii) Explain in brief, its working.
(iii) What material is used for the core of an electric bell? State the reason.
Explain step up and step down transformer?
The primary of a transformer has 40 turns and works on 100 V and 100 W. Find a number of turns in the secondary to step up the voltage to 400 V. Also calculate the current in the secondary and primary.
Transformer works on ______.
An ideal transformer converts 220 V a.c. to 3.3 kV a.c. to transmit a power of 4.4 kW. If primary coil has 600 turns, then alternating current in secondary coil is ______.
