Home
Class 12
PHYSICS
What is meant by rms value of a.c. ?Deri...

What is meant by rms value of a.c. ?Derive an expression for altenating emf ?

Answer

Step by step text solution for What is meant by rms value of a.c. ?Derive an expression for altenating emf ? by PHYSICS experts to help you in doubts & scoring excellent marks in Class 12 exams.

Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ALTERNATING CURRENT

    MODERN PUBLICATION|Exercise Revision Exercises (Nuumerical problems )|18 Videos

  • ALTERNATING CURRENT

    MODERN PUBLICATION|Exercise COMPETITION FILE (OBJECTIVE TYPE QUESTIONS) A. (MUTIPLE CHOICE QUESTIONS)|30 Videos

  • ALTERNATING CURRENT

    MODERN PUBLICATION|Exercise Revision Exercises Short Answer Questions|49 Videos

  • ATOMS

    MODERN PUBLICATION|Exercise Chapter Practice Test|16 Videos

Similar Questions

Explore conceptually related problems

What is meant by mean free path of a gas molecule ? Derive an expression for it .

What is meant by form factor of an a.c. generator ?

Knowledge Check

  • What is meant by one cycle of a.c. ?

    A
    going from zero to + max.
    B
    going from + max. to zero
    C
    going from zero to-max and - max to zero
    D
    all the three `a, b, c` combined together

  • The r.m.s value of alternating e.m.f. is

    A
    twice peak value
    B
    `sqrt(2)` times greater than peak value
    C
    equal to peak value
    D
    less than peak value

    • Similar Questions

    Explore conceptually related problems

    What is meant by average life of a radioactive element ? Derive an expression for it. What is the relation between average life and half life ?

    State the working of a.c. generator with the help of a labelled diagram. The coil of an a.c. generator having N turns, each of area A, is rotated with a constant angular velocity omega . Deduce the expression for the alternating emf generated in the coil. What is the source of energy generation in this device?

    Rms value of an alternating emf.

    .What is meant by root mean square value of alternating current? Derive an expression of r .m.s value of A.C

    Define the term rms value of a.c. Derive the relation between rms and peak value of a.c.

    Draw a labelled diagram of AC generator. Derive the expression for the instantaneous value of the emf induced in the coil.

    Home
    Profile