Home
Class 12
PHYSICS
A compass needle is placed in the gap of...

A compass needle is placed in the gap of a parallel plate
capacitor. The capacitor is connected to a battery
through a resistance. The compass needle

A

does not deflect

B

deflects for a very short time and then comes back to the original position

C

deflects and remains deflected as long as the battery is connected

D

deflects and gradually comes to the original position in a time which is large compared to the time constant.

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC WAVES

    HC VERMA|Exercise objective 2|5 Videos

  • ELECTROMAGNETIC WAVES

    HC VERMA|Exercise Exercises|9 Videos

  • ELECTROMAGNETIC WAVES

    HC VERMA|Exercise Short Answer|7 Videos

  • ELECTROMAGNETIC INDUCTION

    HC VERMA|Exercise EXERCISE|9 Videos

  • GAUSS LAW

    HC VERMA|Exercise Exercises|24 Videos

Similar Questions

Explore conceptually related problems

Each plate of a parallel plate capacitor has a charge q on it. The capacitor is now connected to a battery. Now,

In a geomagnetic pole compass needle

At a neutral point, a compass needle shows

While a capacitor remains connected to a battery and dielectric slab is applied between the plates, then

A sheet of copper is inserted in the air gap of a parallel plate capacitor, without touching any of the two plates of the capacitor. The capacitance of the capacitor is

A parallel plate capacitor has plate A and separation d between the plates. The capacitor is connected to a battery of emf V . (a) find the charge on the capacitor. (b) the plate separation is decreases to d//2 . Find the extra charge given by the battery to the positive plate. (c) work done in reducing separation between plates.

If in a parallel capacitor, which is connected to a battery we fill in whole space of its plates, then which of the following increases?

A parallel plate capacitor is charged by connecting it to a battery. The battery is disconnected and the plates of the capacitor are pulled apart to make the separation between the plates twice. Again the capacitor is connected to the battery (with same polarity) then the potential difference between the plates increases when the plates are pulled apart (yes or not)