Advertisements
Advertisements
प्रश्न
Why is it necessary to introduce a radial magnetic field inside the coil of a galvanometer?
Advertisements
उत्तर
A radial magnetic field is necessary so that plane of the coil in all positions remain parallel to the direction of magnetic field
APPEARS IN
संबंधित प्रश्न
Why does a galvanometer show a momentary deflection at the time of charging or discharging a capacitor? Write the necessary expression to explain this observation.
A circular coil of 250 turns and diameter 18 cm carries a current of 12A. What is the magnitude of magnetic moment associated with the coil?
Define current sensitivity of a galvanometer.
Write current sensitivity of a galvanomete S.I. unit.
State the principle of the working of a moving coil galvanometer, giving its labeled diagram ?
State the underlying principle of working of a moving coil galvanometer. Write two reasons why a galvanometer can not be used as such to measure current in a given circuit. Name any two factors on which the current sensitivity of a galvanometer depends.
The coil of a moving coil galvanometer is wound over a metal frame in order to ______.
How is current sensitivity increased?
Explain in brief the basic construction of a moving-coil table galvanometer whit a neat labelled diagram.
The figure below shows a circuit containing an ammeter A, a galvanometer G and a plug key K. When the key is closed:
