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प्रश्न
Mention various energy losses in transformer device
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उत्तर
Energy losses in the transformer:
Flux leakage, due to poor design of the core and air gaps in the core
Resistance of the windings, which leads to loss of energy due to heat produced
Eddy currents, due to alternating magnetic flux in the iron core, which leads to loss due to heating
Hysterisis, frequent and periodic magnetization and demagnetization of the core, leading to loss of energy due to heat
संबंधित प्रश्न
How is the e.m.f. across primary and secondary coils of a transformer related with the number of turns of the coil in them?
State two ways through which the strength of an electromagnet can be increased.
The transformer is used in ______ current circuits.
Copy the given diagram of a transformer and complete it. Name the parts A and B. Name the part you have drawn to complete the diagram. What is the material of this part? Is this transformer a step-up or step-down? Give reason.
A transformer lowers e.m.f. 220 V to 12 volts. If the number of turns in primary are 8800, how many turns are in secondary coil?
What are step-up and step-down transformers?
Which among the following, is not a cause for power loss in a transformer?
A transformer operating at primary voltage 8 kV and secondary voltage 160 V serves a load of 80 kW. Assuming the transformer to be ideal with purely resistive load and working on unity power factor, the loads in the primary and secondary circuit would be:
How do the input and output powers in a transformer compare? State the assumption made.
