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प्रश्न
Name the phenomenon ?
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उत्तर
Phenomenon is called electromagnetic induction.
संबंधित प्रश्न
The following diagram in Fig. 10.44 shows a coil X connected to a sensitive centre –zero galvanometer G and a coil P connected to a battery through a switch S.
(a) Describe the observation when the switch S is (i) closed suddenly, (ii) then kept closed, (iii) finally opened.
(b) Name and state the law which explains the above observations.
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Name two kind of energy loss in a transformer. How is it minimized?
Draw a labelled diagram to show the various parts of a step-up transformer and step down transformer.
A transformer lowers e.m.f. from 220 V to 15 V. If 400 W power is given in primary, calculate (i) the current in primary coil and (ii) the current in secondary coil.
What is Transformer?
Transformer works on ______.
Find out the phase relationship between voltage and current in a pure inductive circuit.
A transformer works on the principle of ______.
