The frequency of an alternating voltage is 50 cycles per second and its amplitude

The frequency of an alternating voltage is 50 cycles per second and its amplitude is 120 V. Then the r.m.s. value of voltage is

Options

(a) 84.8 V
(b) 101.3 V
(c) 70.7 V
(d) 56.5 V

Correct Answer:

84.8 V

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

admin:

Related Questions

  1. If the error in the measurement of momentum of particle is (+100%)
  2. A body of mass 2 kg travels according to the law x(t)=pt+qt²+rt³
  3. If t₁ ̷ ₂ is the half-life of a substance, then t₃ ̷ ₄ is the time in which
  4. Two waves are represented by the equations y₁ = a sin (?t + kx + 0.57) m
  5. A piece of marble is projected from the earth’s surface with velocity of 50 m/s