Statements given below are incorrect. Write the correct statements.
A tracing needle is used by the sailor for navigation.
So, the correct statement is,
A magnetic needle is used by the sailor for navigation.
Statements given below are incorrect.
Write the correct statements.
Copper metal is used for making coins and hence is a magnetic substance.
The statements given below are incorrect. Write the correct statements.
Television sets use permanent magnets for accurate reception.
B. Statements given below are incorrect. Write the correct statements :
Aluminium is a magnetic substance.