Advertisements
Advertisements
प्रश्न
Explain why an induced current must flow in such a direction so as to oppose the change producing it.
Advertisements
उत्तर
So that the mechanical energy spent in producing the change, is transformed into the electrical energy in form of induced current.
APPEARS IN
संबंधित प्रश्न
Explain the construction and working of the transformer.
State the principle of transformer working with the help of a diagram
Name two kind of energy loss in a transformer. How is it minimized?
In an ideal transformer, an output of 66 kV is required when an input voltage of 220 V is available. If the primary has 300 turns, how many turns should the secondary have?
Devices which is used to convert high alternating current to low alternating current is ______.
The primary coil of a transformer has 800 turns and the secondary coil has 8 turns. It is connected to a 220 V ac supply. What will be the output voltage?
A step down transformer connected to an ac mains supply of 220 V is made to operate at 11 V, 44 W lamp. Ignoring power losses in the transformer, what is the current in the primary circuit?
An iron rod of 0.2 cm2 cross-sectional area is subjected to a magnetising field of 1200 Am-1. If the susceptibility of iron is 599, then the magnetic flux produced is ______.
Explain why core of a transformer is always laminated.
An ideal transformer converts 170 V a.c. to 1.70 KV a.c. to transmit a power of 3.4 KW. If primary coil has 500 turns then alternating current in secondary coil is ______.
