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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
The input and output voltages of a transformer are 220 V and 44V respectively. Find the current in input circuit if the output current is 2 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?
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?
The primary and secondary coils of a transformer each have an inductance of 200 x 10-6 H. The mutual inductance between the windings is 4 x 10-6 H. What percentage of the flux from one coil reaches the other?
A circular coil of 100 turns with a cross-sectional area of 1 m2 is kept with its plane perpendicular to the magnetic field of 1 T. The magnetic flux linkage is ______.
Transformer works on ______.
A transformer works on the principle of ______.
The line that draws power supply to your house from street has ______.
- zero average current.
- 220 V average voltage.
- voltage and current out of phase by 90°.
- voltage and current possibly differing in phase `phi` such that `|phi| < pi/2`.
What does the laminated soft iron core provide for the flux?
