Advertisements
Advertisements
प्रश्न
Write the function of a transformer.
Advertisements
उत्तर
A transformer is a device that changes or transforms a low alternating voltage into a high alternating voltage or vice versa.
संबंधित प्रश्न
Express the turn ratio in terms of voltages.
State two factors on which the magnitude of induced e.m.f. depend.
Name two kind of energy loss in a transformer. How is it minimized?
State the underlying principle of a transformer. How is the large scale transmission of electric energy over long distances done with the use of transformers?
State the principle of a transformer.
In a transformer, the number of turns in the primary and the secondary are 410 and 1230 respectively. If the current in primary is 6A, then that in the secondary coil is
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%
In an ideal transformer, the turns ratio is `N_p/N_s = 1/2`. The ratio Vs : Vp is equal to (the symbols carry their usual meaning):
Which description of the secondary coil is correct?
Where is alternating voltage \[V_p\] applied?
