Advertisements
Advertisements
प्रश्न
Write true or false for a given statement.
In an electromagnet, the core is made up of copper.
पर्याय
True
False
उत्तर
False
APPEARS IN
संबंधित प्रश्न
Write true or false for a given statement.
An electric bell uses an electromagnet.
Select the correct alternative
An electromagnet is used in
Select the correct alternative
The purpose of armature in an electric bell is
What is an electromagnet?
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 common uses of electromagnets ?
The incomplete diagram of an electric bell is given in fig. Complete the diagram and label its different parts ?
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.
