Advertisements
Advertisements
प्रश्न
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?
Advertisements
उत्तर
E and F are placed in contact with the poles of magnets to preserve the strength of the magnet.
APPEARS IN
संबंधित प्रश्न
Fill in the blank
Like poles ______ each other and unlike poles _____
Match the following
| Column A | Column B |
| (a). Human body | (1). electric bell |
| (b). Silk thread | (2). current |
| (c). Charge in motion | (3). conductor |
| (d). soft iron | (4). electromagnet |
| (e) . Electromagnet | (5). insulator |
Write true or false of the following statement.
Magnetic keeper is a wooden piece.
Draw diagrams of the artificial magnets of four different shapes?
State three important uses of a magnet.
What do you understand by the term magnetic declination?
Define the following term:
Angle of dip
Consider the statement given below and choose the correct option.
Assertion: Iron filings are concentrated more at the magnetic poles.
Reason: The magnets are so sharp.
