Question
What is the relation between peak value and root mean square value of alternating voltage?
✓
Answer
$E _{ rms }=\frac{ E _0}{\sqrt{2}}$,
where $E_0$ is peak value of alternating voltage.
where $E_0$ is peak value of alternating voltage.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Suppose that the lower half of the concave mirror's reflecting surface in Fig. 9.6 is covered with an opaque (non-reflective) material. What effect will this have on the image of an object placed in front of the mirror?
What is the origin of displacement current?
Voltage across the ends of inductor, capacitor and resistor in a series LCR circuit is 20 V, 20 V and 40 V respectively. What is the phase difeerence between the current and applied voltage in the circuit?
Two exactly identical 15 watt bulbs are placed very close to each other. Will they produce interference effects?
Write any two examples of paramagnetic substances.
Specific resistance of copper, silver and constantan are 1.18 × 10–6, 1 × 10–6, 45 × 106 ohm cm respectively. Which is the best electrical conductor and why?
A fan with copper winding in its motor consumes less power as compared to an otherwise similar fan aluminium winding. Explain.
Can you, have an AG series circuit in which there is. a phase difference of 180° between the emf and the current? 120°?
The dielectric constant decreases if the temperature is increased. Explain this in terms of polarization of the material.
A charge 'q' is moved from a point A above a dipole of dipole moment 'p' to a point B below the dipole in equatorial plane without acceleration. Find the work done in the process.
