An $AC$ current is given by the expression,$I(t) = 50 \sin(200 \pi t)$ in amperes. The frequency and $RMS$ value of the current respectively are

  • A
    $100 \text{ Hz}, 50 \sqrt{2} \text{ A}$
  • B
    $100 \text{ Hz}, 25 \sqrt{2} \text{ A}$
  • C
    $200 \text{ Hz}, 50 \sqrt{2} \text{ A}$
  • D
    $200 \text{ Hz}, 25 \sqrt{2} \text{ A}$

Explore More

Similar Questions

An alternating current of frequency $50 \,Hz$ has a peak value of $14.14 \,A$. The time taken by the alternating current to reach from zero to its maximum value and the root mean square (r.m.s.) value of the current are respectively:

If $i = t^2$ for $0 < t < T$,then the $r.m.s.$ value of the current is:

An alternating e.m.f. is given by $e = e_0 \sin \omega t$. In how much time will the e.m.f. have half its maximum value,if $e$ starts from zero? $(T = \text{time period}, \sin 30^{\circ} = 1/2)$

The maximum value of $a.c.$ voltage in a circuit is $707 \ V$. Its $rms$ value is.....$V$

$A$ sinusoidal voltage produced by an $AC$ generator at any instant $t$ is given by the equation $V = 311 \sin(314t)$. The $rms$ value of voltage and frequency are respectively:

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo