Question
Alternative current generator is basically based upon:
✓
Answer
- Faradays law
Alternative current generator is based on Faraday's Law. Faraday's Law states that when the magnetic flux linking a circuit changes,an emf is induced in the circuit proportional to the rate of change of flux linkage.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A star is going away from the earth. An observer on the earth will see the wavelength of light coming from the star(a) Decreased(b) Increased(c) Neither decreased nor increased(d) Decreased or increased depending upon the velocity of the star
If two conducting spheres are separately charged and then brought in contact(a) The total energy of the two spheres is conserved(b) The total charge on the two spheres is conserved(c) Both the total energy and charge are conserved(d) The final potential is always the mean of the original potentials of the two spheres
Assertion : The presence of water molecules makes separation of ions easier in electrolyte.
Reason : The presence of water molecules in electrolyte decreases the resistance of electrolyte.(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.(c) If assertion is true but reason is false.(d) If the assertion and reason both are false.
Reason : The presence of water molecules in electrolyte decreases the resistance of electrolyte.(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.(c) If assertion is true but reason is false.(d) If the assertion and reason both are false.
The $21 \ cm$ radio wave emitted by hydrogen in interstellar space is due to the interaction called the hyperfine interaction is atomic hydrogen. the energy of the emitted wave is nearly
→In an $L–R$ circuit connected to a battery the rate at which energy is stored in the inductor is plotted against time during the growth of the current in the circuit. Which of the following best represents the resulting curve
→A heater coil connected to a supply of a $220 V$ is dissipating some power $P_1$. The coil is cut into half and the two halves are connected in parallel. The heater now dissipates a power $P_2$. The ratio of power $P_1: P_2$ is
→Two cars of unequal masses use similar tyres. If they are moving at the same initial speed, the minimum stopping distance:
The ratio of the energies of the hydrogen atom in its first to second excited state is(a) 1/ 4(b) 4/9(c) 9/ 4(d) 4
A long, straight wire carries a current i. The magnetizing field intensity H is measured at a point P close to the wire. A long, cylindrical iron rod is brought close to the wire so that the point P is at the centre the rod. The value of H at P will:
- Increase many times.
- Decrease many times
- Remain almost constant.
- Become zero.
The value of amplification factor from the following graph will be
