Download App

AC Circuits — Physics STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 SciencePhysicsAC Circuits2 Marks
Question
In an LC parallel circuit, under what condition, does the impedance become maximum?
✓

Answer

In an LC parallel circuit, the Impedance becomes maximum when $\omega L =\frac{1}{\omega C}$ or $f =\frac{1}{2 \pi \sqrt{L C}}$ where $f$ is the frequency of the applied alternating emf, $L$ is the inductance and $C$ is the capacitance

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 "Short Answer Type Question" from AC Circuits→AC Circuits — all question types→Physics STD 12 Science question papers→Maharashtra Board STD 12 Science question papers→Maharashtra Board question paper generator→

Similar questions

State the factors on which the resistance Of a material depends.
→
A circular loop of radius \(9.2 cm\) carries a current of \(2.3 A\). Obtain the magnitude of magnetic field at the centre of loop.
→
In the above case (Question 43), if the body is not a perfect blackbody and $e=0.1$, what will be the emissive power?
→
Name two materials that have negative magnetic susceptibility.
→
What is the minimum angular separation between two stars if a telescope is used to observe them with an objective of aperture $20 \ cm$ ? The wavelength of light is $5900 \mathring A .$
→
If the frequency of revolution of a proton $\left( q =1.6 \times 10^{-19} C \right)$ in a uniform magnetic induction is $10^6 Hz$, what is the corresponding electric current?
→
Which magnetic materials have
(i) relative permeability > 1
(ii) relative permeability <1?
→
A torque of $100 \mathrm{~N} . \mathrm{m}$ is applied to a body capable of rotating about a given axis. If the body starts from rest and acquires kinetic energy of $10000 \mathrm{~J}$ in 10 seconds, find
(i) its moment of inertia about the given axis
(ii) its angular momentum at the end of 10 seconds.
→
The internal energy of one mole of nitrogen at $300 \mathrm{~K}$ is $6235 \mathrm{internal~J}$. What is the internal energy of one mole of nitrogen at $400 \mathrm{~K}$ ?
→
Explain the principle of a capacitor.
→