Advertisements
Advertisements
प्रश्न
Name a domestic device in which an electromagnet is used ?
उत्तर
Electromagnet is used in ELECTRICAL APPLIANCES like ELECTRIC BELL, RADIO, T.V., FAN and MOTORS etc.
APPEARS IN
संबंधित प्रश्न
Write true or false for a given statement.
An electric bell uses an electromagnet.
Fill in the blank
The strength of the magnetic field of an electromagnet is increased by inserting a core of soft ______
Select the correct alternative
An electromagnet is used in
Name the material of an electromagnet?
You are given a U shaped soft iron piece, insulated copper wire and a battery. Draw a circuit diagram to make a horse shoe electromagnet ?
Name two factors on which the strength of magnetic field of an electromagnet depends ?
State two ways by which the strength of magnetic field of an electromagnet can be increased ?
State two common uses of electromagnets ?
Draw a neat and labelled diagram of an electric bell and describe its working ?
The following diagram shows four circuits A, B, C and D. Each circuit has a cell and a torch bulb. Name the circuits in which the bulb will glow? Give reason to your answer.