Distinguish between the terms ‘effective value’ and peak value of… - Vidyadip

Question

Distinguish between the terms ‘effective value’ and peak value of alternating current.

✓

Answer

Alternating current changes in magnitude as well as direction. The maximum value of the alternating current is called the peak value. It is denoted by I₀. The square root of mean square value of current is called the ‘effective value’ or ‘rms value’ of current. The two are related by
Effective value, $\text{E}_{\text{eff}}=\frac{\text{I}_0}{\sqrt{2}}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "2 Marks Questions" from Alternating Current→Alternating Current — all question types→Physics STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

If you jump barefooted on a hard surface, your legs get injured. But they are not injured if you jump on a soft surface like sand or pillow. Explain.

The equation $\omega=\frac{\mu_\text{v}-\mu_\text{r}}{\mu-1}$ asderived for a prism having small refracting angle. Is it also valid for a prism of large refracting angle? Is it also valid for a glass slab or a glass sphere?

In order to have a current in a long wire, it should be connected to a battery or some such device. Can we obtain the magnetic due to a straight, long wire by using Ampere's law without mentioning this other part of the circuit?

In a Young's double slit experiment $\lambda=500\text{nm},$ d = 1.0mm and D = 1.0m. Find the minimum distance from the central maximum for which the intensity is half of the maximum intensity.

Can a virtual image be photographed by a camera?

A Galilean telescope is 27cm long when focused to form an image at infinity. If the objective has a focal length of 30cm, what is the focal length of the eyepiece?

Draw the graph of variation of Coulomb force (F) with $(r)$. Where the distance between the two charges of each charge pair is ( $1 \mu C , 2 \mu C$ ) and ( $2 \mu C$, $-3 \mu C$ ). Analyse the graph obtained.

Write down the limitations of Coulomb's law.

When we can consider a charged particle as point electric charge ?

What is optically denser and optically rarer medium?