Question
A capacitor acts as an infinite resistance for:

Answer

  1. DC.
Explanation:
$\text{X}_\text{C}\frac{1}{\omega\text{C}}=\frac{1}{0\times\text{C}}$ $\bigg\{\text{in}\stackrel{{\text{DC}}}{{\omega = 0 }}\bigg\}$
$=\infty$

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

Self induction of a solenoid is(a) Directly proportional to current flowing through the coil(b) Directly proportional to its length(c) Directly proportional to area of cross-section(d) Inversely proportional to area of cross-section
 
 
 
 
If the length of potentiometer wire is increased, then the length of the previously obtained balance point will:
Equivalence in the following circuit is:
Image
1 amu (u) is equivalent to :
Assertion :   Kinetic energy of photo electrons emitted by a photosensitive surface depends upon the intensity of incident photon.
Reason     : The ejection of electrons from metallic surface is possible with frequency of incident photon below the threshold frequency. (a) If both assertion and reason are true and the reason is the correct explanation of the assertion.(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.(c) If assertion is true but reason is false.(d) If the assertion and reason both are false.
 
 
 
 
How will  the force between the two poles change if the two poles are connected by an iron rod keeping the distance between two magnetic poles constant ?
Which of the following quantities is the same for all ideal gases at the same temperature?
  1. The kinetic energy of 1 mole.
  2. The kinetic energy of 1g.
  3. The number of molecules in 1 mole.
  4. The number of molecules in 1g.
A particle of mass m is attached to a light string of length l, the other end of which is fixed. Initially the string is kept horizontal and the particle is given an upward velocity v. The particle is just able to complete a circle.
  1. The string becomes slack when the particle reaches its highest point.
  2. The velocity of the particle become zero at the highest point.
  3. The kinetic energy of the ball in initial position was $\frac{1}{2}\text{m}\nu^2=\text{mgl}.$
  4. The particle again passes through the initial position.
In the figure given below, the current passing through $6 \Omega$  resistor is
Let V and E represent the gravitational potential and field at a distance r from the centre of a uniform solid sphere. Consider the two statements:
  1. The plot of V against r is discontinuous.
  2. The plot of E against r is discontinuous.
  1. Both A and B are correct.
  2. A is correct but B is wrong.
  3. B is correct but A is wrong.
  4. Both A and B are wrong.