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प्रश्न
How do the input and output powers in a transformer compare? State the assumption made.
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उत्तर
Input power = output power
or Power fed in primary = power produced in secondary
Ep × Ip = Es × Is
Assumption made: zero energy loss happens.
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संबंधित प्रश्न
State the principle of transformer working with the help of a diagram
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(i) Describe the observation if the coil is rapidly moved.
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(ii) Explain in brief, its working.
(iii) What material is used for the core of an electric bell? State the reason.
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The 300 turn primary of a transformer has resistance 0.82 Ω and the resistance of its secondary of 1200 turns is 6.2 Ω. Find the voltage across the primary if the power output from the secondary at 1600V is 32 kW. Calculate the power losses in both coils when the transformer efficiency is 80%
A transformer consisting of 300 turns in the primary and 150 turns in the secondary gives output power of 2.2 kW. If the current in the secondary coil is 10 A, then the input voltage and current in the primary coil are ______.
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