TEST PAPER 19 : CHAPTER 5 : MAGNETIC EFFECTS OF ELECTRIC CURRENT : 25 MARKS

There are 13 questions in all and time limit is 45 minutes.

SECTION - A : CHOOSE APPROPRIATE ALTERNATIVE : [1 mark each, Total marks 3]

1. Who was the first scientist to observe the magnetic effect of electric current ?
   
   
   
   1. Faraday
   2. Ampere
   3. Oersted
   4. Volta
      
   
   
2. The direction of magnetic field lines is taken...
   
   
   
   1. north pole to south pole
   2. south pole to north pole
   3. entering both poles
   4. leaving both poles
      
   
   
3. The insulation cover on live wire is...
   
   
   
   1. red
   2. black
   3. green
   4. white
      
   
   

   SECTION - B : ANSWER IN SHORT : [1 mark each, Total marks 3]
   

4. What is induced current ?
5. What do we mean by frequency of current ?
6. Which metal is generally used to make a fuse wire ?
   
   

   SECTION - C : ANSWER IN BRIEF : [2 marks each, Total marks 8]
   

7. Explain : Right-hand thumb rule with diagram.
8. Mention two advantages of alternating current.
9. Domestic appliances are joined in parallel. Why ?
10. Explain : Electromagnetic induction.
    
    

    SECTION - D : ANSWER THE FOLLOWING : [3 marks each, Total marks 6]
    

11. Write a note on solenoid.
12. Draw a schematic diagram of domestic wiring.
    
    

    SECTION - E : ANSWER IN DETAIL : [5 marks each, Total marks 5]
    

13. Describe electric motor with diagram.