MAGNETIC EFFECTS OF ELECTRIC CURRENT FORMATIVE ASSESSMENT I

MAGNETIC EFFECTS OF ELECTRIC CURRENT FA- I

Q. PAPER I          MARKS-30                      TIME- 70 MINUTES

Instructions:

Questions : 1 to 5 – 1 Mark each       Questions : 6 to 9 – 2 Marks each

Questions : 10 to 13 – 3 Marks each Question 14 – 5 Marks

1. State two uses of permanent magnets.

2. Does a neutron moving in a magnetic field experience a force. Why?

3. State Fleming’s right hand rule.

4. What are the functions of live and neutral wire in domestic circuit?

5. Electricians wear rubber shoes while working. Why?

6. Give four basic properties of magnets.

7. Define SI unit of magnetic field. Under what condition does a moving charge experience

i) Maximum force ii) Minimum force

8. Draw toe field line around the bar magnet along its length on its two sides and mark the field directions on them by arrow marks.

9. Why do we use power supply of two different current rating at our home?

10. Write an activity to show that current carrying wire behaves like a magnet.

11. Match the following      

              A                                                          B
 i) Electromagnet                      a) Convert electric energy to mechanical energy

ii) Electric motor                      b) Convert mechanical energy to electrical energy

iii) Electric generator               c) Strong magnet

12. Name three factors on which force produced due to magnetic field depends.

13. What is an electric fuse? What material is used for fuse wire?

14. a) Write the principle of electric motor.

b) Explain the construction and working of electric motor briefly.

c) Draw a labelled diagram of electric motor.

You may also like
X Magnetic Effects FA - 1 Paper-1
Download File 
X Magnetic Effects FA - 1 Paper-2
Download File

X Magnetic Effects of Currents CBSE Hot questions 
Download File
X Magnetic Effects of Currents Important questions
Download File
X Magnetic Effects of Currents CBSE Question Banks
Download File