Magnetic Effects of Electric Current

Which of these is not attracted by a magnet?

What happens when we hit a magnet with a hammer?

Explain magnetic field.

When current stops flowing through the coil of an electromagnet, will it still remain a magnet?

When current flows through a wire, does the wire behave like a magnet?

When current flows through a wire, it behaves like a magnet. What is this effect known as?

When a current flows through a coil of wire, it behaves like a _____.

List three properties of a magnet.

Why magnetic field are generated by magnets?

Where does a magnet get its energy?

Describe an activity to show the magnetic effect of electric current.

Unit of magnetic flux is

The magnetic field intensity $\left(B\right)$ at a distance $\text{'}r\text{'}$from a long straight conductor carrying a steady current varies with $\text{'}r\text{'}$ as shown in figure: 

Which of the following is NOT correct for magnetic filed lines?

SI unit of magnetic field is

Test whether the materials are magnetic or non-magnetic materials:
[wooden fence, iron nail, plastic chair, newspaper, steel scissors]

Group the magnetic materials and non-magnetic materials separately:
[Metal keys, Brick, Wood, Cotton, Paper, Metal nail]

An electric field has a direction, but a magnetic field does not.

Which of these substances is attracted to a magnet? 

More iron filings are concentrated around the poles of the magnets because the strength of the magnetic field is _____ (More/Less) near the poles.