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प्रश्न
Name the principle on which functioning of a transformer depends.
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उत्तर
The functioning of a transformer depends on the phenomenon of electromagnetic induction.
संबंधित प्रश्न
Draw a labeled diagram of a step-down transformer.
A power transmission line feeds input power at 2200 V to a step-down transformer with its primary windings having 300 turns. Find the number of turns in the secondary to get the power output at 220 V.
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.
Given the input current 15 A and the input voltage of 100 V for a step-up transformer having 90% efficiency, find the output power and the voltage in the secondary if the output current is 3 A.
Name three losses of energy in a transformer. How are they minimized?
The primary coil of a transformer has 200 turns while the secondary coil has 1000 turns. What type of transformer is this? if the input voltage is 10V, what will be the output voltage?
Explain the working of the transformer.
Explain why core of a transformer is always laminated.
