Home
Class 12
PHYSICS
If the angular velocity of coil of an ac...

If the angular velocity of coil of an ac dynamo is doubled ,how would the emf produced change?

Text Solution

Verified by Experts

The correct Answer is:
doubled
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ALTERNATING CURRENT

    CHHAYA PUBLICATION|Exercise EXERCISE ( Short Answer Type-I)|18 Videos

  • ALTERNATING CURRENT

    CHHAYA PUBLICATION|Exercise EXERCISE ( Short Answer Type-II)|3 Videos

  • ALTERNATING CURRENT

    CHHAYA PUBLICATION|Exercise EXERCISE (Multiple Choice Question)|32 Videos

  • CHHAYA PUBLICATION|Exercise EXAMPLE|1 Videos

  • ATOM

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|18 Videos

Similar Questions

Explore conceptually related problems

If the area of the coil of an ac dynamo is halved, how would the emf generated change?

If the diameter of the objective of a telescope is doubled, how will its resolving power change?

If the frequency of an circuit is increased, how would the reactance of an inductor change?

Is there any change in the angular velocity of the earth when a body strikes the earth's surface from outside ?

If the frequency of an circuit is increased, how would the reactance of a capacitor change?

IF the number of gas molecules in a container in doubled, how will the pressure and the total kinetic energy of the gas molecules of that container change?

A conducting wire of length l is rotating with angular velocity w in a magnetic field B perpendicular to it. Prove that the induced e.m.f. at the two ends of the conducting wire is e = 1/2 Bwl^2 .

If the supply voltage drop from 220 V to 200 V , what would be percentage reduction in heat produced by a 220V - 1000W heater ? Neglect the change of resistance. If the change of resistance is taken into consideration would the reduction of heat produced be smaller or larger than the previously calculated value ? Explain.

A gramaphone record is revolving with an angular velocity omega . A coin is placed at a distance r from the centre of the record: The static coefficient of friction is mu . What will be the value of r for that the coil will revolve with the record?

How would you carry out the following changes:

Home
Profile