Question
What is the value of inductive reactance in. pure inductor de circuit?

Answer

Zero, because $X_L=\omega L$ and in direct current $\omega=0$.

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

Similar questions

For which colour the magnifying power of a simple microscope is highest? For which colour it is lowest?
If a spherical mirror is dipped in water, does its focal length change?
If the angular momentum of a body is found to be zero about a point, is it necessary that it will also be zero about a different point?
One of your friends argues that he has read in the previous chapters that there can be no electric field inside a conductor. And hence there can be no current through it. What is the fallacy of this argument?
What is the relation between drift velocity and relaxation time of free electrons in metals?
Is current density a scalar or a vector quantity?
Suppose that the electric field part of an electromagnetic wave in vacuum is $\text{E}=\{(3.1 \ \text{N}/\text{C}\cos[(1.8 \text{rad}/ \text{m}) \text{y}+(5.4\times10^6 \ \text{red}/\text{s}\text{t}]\hat{\text{i}}\}$.
  1. What is the direction of propagation?
  2. What is the wavelength λ ?
  3. What is the frequency ν ?
  4. What is the amplitude of the magnetic field part of the wave?
  5. Write an expression for the magnetic field part of the wave.
Which of the following is a semi-conductor?
(i) Copper
(ii) Gallium Arsenide
(iii) Sulphur.
Write mirror and its types.
A one meter long glass tube is open at both ends. One end of the tube is dipped into a mercury cup, the tube is kept vertical and the air is pumped out of the tube by connecting the upper end to a suction pump. Can mercury be pulled up into the pump by this process?