Advertisements
Advertisements
Question
People who made mariner’s compass for the first time.
Options
Indians
Europeans
Chinese
Egyptians
Advertisements
Solution
Chinese
APPEARS IN
RELATED QUESTIONS
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 |
You are given two similar bars. One is a magnet and the other is of soft iron. How will you distinguish and identify them ?
What is declination ? Draw a diagram to show the angle between the declination and true direction of geographic north.
Answer the following in short.
What is a magnet? Differentiate between natural and artificial magnets.
Answer the following in detail.
List four methods of magnetizing a magnetic substance.
Write the answer in your word.
Write the properties of a magnet.
Fill the blank spaces in the table given below:
| Nature of bar | Action of compass needle | |
| North Pole | South Pole | |
| Non-magnetic | No action | ________ |
| ________ | attracted | attracted |
| North pole of a bar magnet | ________ | _________ |
| ________ | attracted | repelled |
Bar magnets are often stored in pairs as shown in the figure. E and F being pieces of metal.
Mark on the diagram the poles of the second magnet,
Define the following term:
Angle of declination
