Advertisements
Advertisements
Question
Magnets are used in _______ for generating electricity.
Advertisements
Solution
Magnets are used in dynamos for generating electricity.
APPEARS IN
RELATED QUESTIONS
You are given a magnet. How will you use it to find north-south direction at a place?
State three important uses of a magnet.
Answer the following.
Can you bring two similar poles of two different magnetic close together easily? Why?
If a bar magnet is hung by a thread tied at its center, its north pole becomes steady in the direction of the ______ Pole of the earth.
The alloys called ______ and ______ are used for making industrial magnets.
Describe, how you will proceed to determine the position of the pole of a bar magnet.
Bar magnets are often stored in pairs as shown in the figure. E and F being pieces of metal.
Why are E and F placed in contact with the poles of the magnets as shown in the diagram?
Differentiate between:
Primary and secondary cell.
With the help of a diagram explain the following:
Magnetisation of steel needle using electric current such that the pointed end should have north polarity.
Why it is not advisable to slide a magnet on an iron bar back and forth during magnetising it?
