Advertisements
Advertisements
Question
Explain why an induced current must flow in such a direction so as to oppose the change producing it.
Advertisements
Solution
So that the mechanical energy spent in producing the change, is transformed into the electrical energy in form of induced current.
APPEARS IN
RELATED QUESTIONS
Write the function of a transformer.
For what purpose are the transformers used? Can they be used with a direct current source?
The input and output voltage of a transformer are 220 V and 44 V respectively. Find: the turns ratio.
Name the principle on which functioning of a transformer depends.
Why is the core of a transformer made of soft iron?
A 220 V input is supplied to a transformer. The output circuit draws a current of 2.0 A at 440 V. If the ratio of output to input power is 0.8, then the current drawn by primary winding is ______.
Define a Transformer.
A 60 W load is connected to the secondary of a transformer whose primary draws line voltage. If a current of 0.54 A flows in the load, what is the current in the primary coil? Comment on the type of transformer being used.
