Advertisements
Advertisements
प्रश्न
Fill in the following blank with suitable words:
The magnetic effect of a coil can be increased by increasing the number of ........... increasing the ........... or inserting an ........... core.
उत्तर
The magnetic effect of a coil can be increased by increasing the number of turnsincreasing the current or inserting an iron core.
APPEARS IN
संबंधित प्रश्न
Which effect of current can be utilised in detecting a current carrying wire concealed in a wall?
Fill in the following blank with suitable words:
If a coil is viewed from one end, and the current flows in a clockwise direction, then this end is a ........... pole.
How should the electric lamps in a building be connected so that the switching on or off in a room has no effect on other lamps in the same building?
Write the correct option by observing the figures.
(c) Considering the relationship in the first pair, complete the second paie :
AgCI : White :: CuI2 : ___________
Magnetic effect of current was discovered by ______.
What do you mean by the magnetic effect?
What are MCBs? How do they work?
Define the magnetic effect of electric current.
Make four electromagnets with 20, 40, 60 and 80 turns. Connect them one by one to a battery of 2 cells. Bring the electromagnet near a box of pins. Count the number of pins attracted by it. Compare the strengths of the electromagnets.
