CLASS – X MAGNETIC EFFECTS & ELECTRIC CURRENT METALS & NON-METAL

 

CLASS – X

MAGNETIC EFFECTS & ELECTRIC CURRENT

METALS & NON-METAL

1. One marks question.

1. What is the advantages of the third wire of earth connection in domestic appliances?

2. Give one important advantage of AC over DC.

3. What is Anodising process?

4. A metal and a non-metal which exist as liquid at room temperature.

5. Two metal which are allowed with iron to make stainless steel.

6. Why magnetic lines never intersect each other?

2. Two marks question.

1. Define electromagnet and how is it different from natural magnet?

2. Define electromagnetic induction and write its one application.

3. Give reason: -

1. Sulphur is a non-metal

2. Magnesium is a metal

4. Distinguish between a solenoid and a bar magnet. Draw the magnetic lines for both.

5. State the right hand thumb rule.

6. Differentiate between calcination and roasting.

3. Three marks question.

1. Explain the electric motor.

2. Differentiate between electric motor and generator.

3. Explain the electric dot structure of MgCl2 and write the type of compound.

4. By what process do you concentrate the following ore.

1. PbS(galena)

2. Fe2O3(haematite)

3. Al2O3.2H2O(Bauxite)