Alignment of a Freely Suspended Magnet

Q. Why do opposite poles of magnets repel each other?

Q. Write a note on magnetic field

Q.

Define the magnetic field of a bar magnet.

Q. Does a sphere shaped magnet has poles ?

Q. What is Relation between angle of dip and magnetic latitude at that point ?

Q. When suspended freely, poles of a magnet align themselves in the ______ direction.

1. North-South
2. Up-Down
3. Northeast-Southwest
4. East-West

Q.

The region around a magnet in which its force can be detected

Q.

The direction in which the magnets align themselves when suspended in air is :

1. East-West

2. North-South

3. North-East

4. South-West

Q.

Define the following items -
(i) Magnetic force (ii) Magnetic field (iii) magnetic poles

Q.

The space surrounding a magnet within which the effect of magnet is present is called ________________.

Q.

Current carrying conductor has a magnetic effect around it.

1. True
2. False

Q.

Matt has a magnetic compass which is pointing in the north-south direction. He brings a large magnet close to it. In which direction would the magnetic needle align?

1. It would align in the south-north direction .

2. It would align in the east-west direction.

3. It would remain unchanged.

4. It would align itself according to the resulting magnetic field of the Earth and the larger magnet.

Q.

In which direction does a freely suspended magnet align? [1 MARK]

Q. Why does a freely suspended magnet always rest in north- south direction ?[$\text{2 Marks}$]

Q. The direction in which the magnets align themselves when suspended in air is.

1. East-West
2. North-South
3. North-East
4. South-West

Q.

The direction of magnetic field lines of a freely suspended magnet is

1. North to south externally

2. North to south internally

3. South to north internally

4. South to north externally

Q.

Magnets align themselves according to the strongest magnet around them.

1. False
2. True

Q.

Explain why ‘magnetic field lines never intersect with each other.

Q.

There is a bar in my hand. When I suspend it using a thread, it aligns itself such that one end faces the geographic North direction. It also attracts iron items. What can this bar be considered similar to?

1. An electric bulb

2. A water tank

3. A bar magnet

4. A battery

Q.

A compass has a small balanced pointer that always points North-South when suspended freely. This is because :

1. The Earth doesn't have any magnetic field.

2. The compass needle points to cold places.

3. Of gravitational force of the Earth.

4. The Earth has a magnetic field and the pointer is magnetic.

Q.

Magnetic field is a region that spreads:

1. for a finite region around the magnet

2. across a country

3. across the earth

4. infinitely far

Q. Label the diagram given below.

1. South pole
2. North pole
3. Field line

Q.

A magnet in the form of a cube is placed on a piece of cork that floats on water. The cube is marked with four faces W, X, Y and Z and the compass needle points in the direction as shown in the figure. The arrow beside the N symbol represents the direction of the geographical north pole.

Which of the following faces denote the N - pole and S - pole of the magnet?

1. N - pole (W)
   S - pole (X)

2. N - pole (X)
   S - pole (Y)

3. N - pole (Y)
   S - pole (Z)

4. N - pole (Z)
   S - pole (W)

Q.

In case you lost your way, which of the following would you choose to find the direction?

1. Bar magnet

2. A plastic plate

3. Wooden Stick

4. Woolen thread

Q. The direction in which the magnets align themselves when suspended in air is.

1. East-West
2. North-South
3. North-East
4. South-West

Q. A magnet is brought near three pins X, Y and Z made up of three different materials.

Which option is the most suitable regarding the material used to make pins X, Y and Z?

1. Pin X - Steel
   Pin Y - Iron
   Pin Z - Plastic
2. Pin X - Iron
   Pin Y - Steel
   Pin Z - Nickel
3. Pin X - Silver
   Pin Y - Iron
   Pin Z - Steel
4. Pin X - Plastic
   Pin Y - Nickel
   Pin Z - Wood

Q. When iron filings are spread on a piece of paper with a bar magnet at the center, the iron filings align themselves along the of the bar magnet.

1. magnetic field lines
2. electric field lines
3. circumference