Table of Contents

- 1 What is the expression for the instantaneous voltage of 220 V 50hz?
- 2 How do you find the instantaneous value?
- 3 What is the peak value of 220V?
- 4 What is the time by the alternating current of 50 Hz with an rms value of 10 ampere to reach from zero to a maximum value and the peak value of current?
- 5 What is the formula for instantaneous voltage?
- 6 What is meant by instantaneous value?

## What is the expression for the instantaneous voltage of 220 V 50hz?

V = 311 sin 100pt.

### How do you find the instantaneous value?

The instantaneous values of a sinusoidal waveform is given as the “Instantaneous value = Maximum value x sin θ ” and this is generalized by the formula. Where, Vmax is the maximum voltage induced in the coil and θ = ωt, is the rotational angle of the coil with respect to time.

#### What is the peak value of 220V?

We know that voltage rating is the most rms also known as root mean square value of the voltage. So we can say that the peak voltage in a 220 V, 50 Hz Ac source is 311 V.

**What is RMS of 220V?**

If I remember rightly it is the 220 volts AC which is the RMS voltage times root 2 or 1.414. So its 220 rms x 1.414 = 311 volts AC peak. The RMS value is the value that is equivalent to a DC supply. If you get a shock from that 220 volts supply you are actually get a 311 volt peak shock.

**How do you calculate instantaneous voltage?**

Let an instantaneous voltage v be represented by v = VM sin 2πft volts. This is a waveform which varies sinusoidally with time t, has a frequency f, and a maximum value, VM. Alternating voltages are usually assumed to have wave-shapes which are sinusoidal where only one frequency is present.

## What is the time by the alternating current of 50 Hz with an rms value of 10 ampere to reach from zero to a maximum value and the peak value of current?

Time taken by the current to reach the maximum value t=T4=14v=14×50=5×10−3sec and i0=irms√2=10√2=14.14 amp.

### What is the formula for instantaneous voltage?

Figure A. 2.1. The instantaneous voltage of phase to neutral. Figure A.

#### What is meant by instantaneous value?

The instantaneous value is “the value of an alternating quantity (it may ac voltage or ac current or ac power) at a particular instant of time in the cycle”. There are uncountable number of instantaneous values that exist in a cycle.

**Is 220 V rms or peak?**

220v rms peak It is RMS, the peak voltage is RMS * sqare root o f2, say about 310 V.