If an alternating voltage is represented as `E=141 sin (628 t)`, then the rms value of the voltage and the frequency are respectively

Question

If an alternating voltage is represented as `E=141 sin (628 t)`, then the rms value of the voltage and the frequency are respectively

If an alternating voltage is represented as
`E=141 sin (628 t)`, then the rms value of the voltage and the frequency are respectively
A. 141V, 628 Hz
B. 100 V, 50 Hz
C. 100 V, 100 Hz
D. 141 V, 100 Hz

Monjur Alahi

8 views

2025-01-04 04:42

1 Answers

Related Questions

The peak value of an alternating e.m.f. is 141.4 V. What would be the reading of an a.c. voltmeter when connected across this e.m.f. ?

2 Answers 5 Views

An alternating voltage is represented by `V=80 sin(100 pi t)cos(100 pi t)` volt, What is the peak voltage?

2 Answers 6 Views

A alternating voltage given by `V = 140 sin 314 t` is connected across a pure resistor of 50 ohm. Find the rms current through the resistor.

2 Answers 5 Views

An alternating current having peak value 141 A is used to heat a metal wire. To produce the same rate of heating effect, another constant current IA i

2 Answers 6 Views

The rms value and frequency of an ac current are 5A and 50 Hz respectively. The value of the current after `1/300s` from the time when its value becom

2 Answers 5 Views

In an ac circuit alternating voltage E=`200sqrt2` sin 100t volt is connected to a capacitor of capacity`1muF`. The rms value of the current in the cir

2 Answers 5 Views

a) The peak voltage of an AC supply is 300 V. What is the rms voltage? b) The rms value of current in an AC circuit is 10A. What is the peak current?

2 Answers 5 Views

The peak value of an alternating current is `5 A` and its frequency is `60 Hz`. Find its rms value. How long will the current take to reach the peak v

2 Answers 6 Views

An alternating current in a circuit is given by l = 20 sin ( 100`pi`t + ` 0.05pi `) A. The rms value and the frequency of current respectively are

2 Answers 13 Views

In an AC circuit , an alternating voltage e = 200``sin 100t V is connected to a capacitor of capacity `1mu F` . The rms value of the current in the ci

2 Answers 5 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - C
`V_"rms" = V_"max"/sqrt2 = 141/sqrt2` = 100 volt
t=100 Hz

8 views Answered 2023-02-05 15:29