Advertisements
Advertisements
Question
State A.C. generator underlying principle?
Solution
Underlying principle of an A.C. generator
The underlying principle responsible for the working of an Α.C. generator is electromagnetic induction. According to this principle, if a conductor is placed in a varying magnetic field, then current is induced in the conductor.
APPEARS IN
RELATED QUESTIONS
Suppose the loop is stationary but the current feeding the electromagnet that produces the magnetic field is gradually reduced so that the field decreases from its initial value of 0.3 T at the rate of 0.02 T s−1. If the cut is joined and the loop has a resistance of 1.6 Ω how much power is dissipated by the loop as heat? What is the source of this power?
Draw a labelled diagram of an ac generator.
Give the principle of AC generator.
List out the advantages of stationary armature-rotating field system of AC generator.
Define average value of an alternating current.
Explain the working of a single-phase AC generator with necessary diagram.
In an A.C circuit, the current
A common transistor radio set requires 12 V (D.C.) for its operation. The D.C. source is constructed by using a transformer and a rectifier circuit, which are operated at 220 V (A.C.) on standard domestic A.C. supply. The number of turns of secondary coil are 24, then the number of turns of primary are ______.
Draw a schematic diagram of an AC generator.
An AC generator spinning at a rate of 750 rev/min produces a maximum emf of 45 V. At what angular speed does this generator produce a maximum emf of 120 V?
