Home
Class 12
PHYSICS
A capacitor is a perfect insulator for...

A capacitor is a perfect insulator for

A

constant direct current

B

alternating current

C

direct as well as alternating current

D

variable direct current

Text Solution

Verified by Experts

The correct Answer is:
A
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ALTERNATING CURRENT

    RESONANCE ENGLISH|Exercise PART-III: Match the column|2 Videos

  • ALTERNATING CURRENT

    RESONANCE ENGLISH|Exercise EXERCISE-2|1 Videos

  • ALTERNATING CURRENT

    RESONANCE ENGLISH|Exercise PART II:|6 Videos

  • ATOMIC PHYSICS

    RESONANCE ENGLISH|Exercise Advanved level problems|17 Videos

Similar Questions

Explore conceptually related problems

A capacitor becomes a perfect insulator for

A capacitor becomes a perfect insulator when the current is

A capacitor is filled with an insulator and a certain potential difference is applied to its pltaes. The energy stored in the capacitor is U . Now the capacitor is disconnected from the source and the insulator is pulled out of the capacitor. The work performed against the forces of electric field in pulling out the insulator is 4 U . Then dielectric constant of the insulator is.

Two point charge +q and -q are fixed on diameterically opposite point on the unirom ring, such that -q is at bottom and is contact will a perfect insulator incline plane. Total mass is equal to m remains in equilibrium on the rough inclined plane in the presence of uniform vertical electric field. Then

Is 90 a perfect square?

Is 196 a perfect square ?

Is 180 a perfect square ?

The terminals of a battery of emf V are connected to the two plates of a parallel plate capacitor. If the space between the plates of the capacitor is filled with an insulator of dielectric constant K, then :

Write the coefficient of thermal coonductivity of a perfect heat conductor and that of a perfect heat insulator.

In C - R circuit, answer the following two questions During charging of C - R circuit let t_(1) and i_(1) be the time constant and initial charging current when capacitor is assumed to be filled by a perfect insulator and t_(2) and i_(2) be the corresponding values when it is assumed imperfect. Then

Home
Profile