6th Class Science Electricity and Circuits Question Bank

done Electricity and Circuits Total Questions - 20

• question_answer1)

  The diagram shows identical lamps X and Y connected in series with a battery. The lamps light with normal brightness.

  If a third lamp Z is connected in parallel with lamp X, then what will happens to the brightness of the lamp V?

                       
  A)
  Brighter than normal               done clear
  B)
  Normal             done clear
  C)
  Dimmer than normal              done clear
  D)
  Very dim (cannot be seen)         done clear
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• question_answer2)
  Look at the given figure. It consists of a cell, a bulb with the two terminals X and Y and wires with ends P and 0; and S and R. The direction of current will be        
  A)
  PQRS              done clear
  B)
  SRQP                          done clear
  C)
  PRQS              done clear
  D)
  SQRP.             done clear
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• question_answer3)
  In which of the following circuits will the bulb glow?                              
  A)
         done clear
  B)
                      done clear
  C)
       done clear
  D)
  done clear
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• question_answer4)
  Which part of the bulb is an insulator?
  A)
  P                                  done clear
  B)
  Q                     done clear
  C)
  R                                  done clear
  D)
  S                      done clear
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• question_answer5)
  To protect the user, part(s) ____ of the plug as shown in the figure must be made of electrical insulators.
  A)
  P only              done clear
  B)
  R only              done clear
  C)
  R and S        done clear
  D)
         Q and S                       done clear
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• question_answer6)
  There is a mistake in the given classification table

  Non-conductor of electricity	Conductor of electricity
  Wool	Copper
  Cotton	Brass
  Plastic	Iron
  Cork	Steel
  Graphite	Silver

  Which of the following is placed incorrectly in the groups?                      
  A)
  Wool                done clear
  B)
  Graphite          done clear
  C)
         Iron                  done clear
  D)
  Silver                           done clear
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• question_answer7)
  Label the dry cell in the correct order.                
  A)
  (i) Carbon and Manganese dioxide mixture, (ii) Carbon rod, (iii) Ammonium chloride                done clear
  B)
  (i) Carbon rod, (ii) Ammonium chloride, (iii) Zinc container                  done clear
  C)
  (i) Ammonium chloride, (ii) Zinc container, (iii) Carbon rod           done clear
  D)
  (i) Zinc container, (ii) Carbon rod, (iii) Carbon and Manganese dioxide mixture                           done clear
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• question_answer8)
  What is the function of the component shown above?                      
  A)
  It is used to connect the bulb to the other components in the circuit. done clear
  B)
  It provides the energy for the bulb to glow.                              done clear
  C)
  It can break a circuit, interrupting the current or diverting it from one conductor to another.               done clear
  D)
  It measures the current in a circuit. done clear
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• question_answer9)
  Which of the following statements are correct?                            

  (i) Human body is a good conductor of electricity.

  (ii) The air gap surrounding an electric circuit acts as a conductor.

  (iii) Silver conducts electricity better than any other metal.

  (iv) When electricity lights up a bulb, no heat is produced.

   
  A)
  (i) and (ii)                    done clear
  B)
  (iii) and (iv)     done clear
  C)
  (i) and (iii)       done clear
  D)
  (ii) and (iii) done clear
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• question_answer10)
  Study the classification carefully and select the correct option for X, Y and Z.                     
  A)

  X	Y	Z
  Refrigerator	Clock	Microwave

                  done clear
  B)

  X	Y	Z
  Music system	Washing machine	Heater

                  done clear
  C)

  X	Y	Z
  Walkman	Table lamp	Electric kettle

                  done clear
  D)

  X	Y	Z
  Air   conditioner	Heater	Hair drier

  done clear
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• question_answer11)
  "Do not handle electric wires with your bare hands. Wear rubber gloves," said Mr Gupta. Which of the following statements is not true about what Mr. Gupta commented?                        
  A)
  You will get electrocuted if you handle live wires. done clear
  B)
  The rubber glove is a good insulator to protect us from electric shocks. done clear
  C)
  The rubber gloves control the electric current flow. done clear
  D)
  Electricity cannot flow through rubber. done clear
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• question_answer12)
  Nidhi has two bulbs connected across two cells in a simple circuit as shown. How can she make the bulbs glow dimmer?
  A)
  Replace one cell with a piece of chalk. done clear
  B)
  Replace one cell with a piece of wire. done clear
  C)
  Replace one bulb with a piece of wire. done clear
  D)
  Replace one bulb with another cell. done clear
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• question_answer13)
  Fuse is the most important safety device, used for protecting the circuits due to   
  A)
  Short circuiting and overloading     done clear
  B)
  Overloading and earthing           done clear
  C)
  Earthing only                       done clear
  D)
  Short circuiting, overloading and earthing,                          done clear
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• question_answer14)

  Direction: Observe the given figure and answer the following question.

  The bulb will glow when a___ is placed in between the probes.

       
  A)
  Crayon                          done clear
  B)
  Comb               done clear
  C)
          Key                   done clear
  D)
           Piece of stone                     done clear
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• question_answer15)

  Direction: Observe the given figure and answer the following question.

  Which of the following statements is correct regarding the maximum brightness of the bulb used in the circuit?

  A)
  A similar battery is connected between the probes in same order. done clear
  B)
  A similar battery is connected between the probes in reverse order. done clear
  C)
  A similar bulb is connected between the probes. done clear
  D)
  None of these done clear
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• question_answer16)
  Three identical bulbs namely P, Q and R are connected to a battery as shown. What will happen when the circuit is closed?
  A)
  R will glow bright but Q and P will be dim. done clear
  B)
  P, Q and R all will glow equally bright. done clear
  C)
  Q and R will immediately burnout. done clear
  D)
  P will glow bright, but Q and R will be dim. done clear
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• question_answer17)
  In the given diagram, there are two switches \[{{S}_{1}}\] and \[{{S}_{2}}\] and two bulbs X and Y. If switch \[{{S}_{1}}\], is closed and switch\[{{S}_{2}}\] is open  then                             
  A)
  Only bulb X will glow   done clear
  B)
  Only bulb Y will glow done clear
  C)
  Both bulbs X and Y will glow done clear
  D)
  Neither bulb X nor bulb Y will glow. done clear
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• question_answer18)
  Ravi connected three bulbs with the cells and a switch as shown. When switch is moved to ON position.
  A)
  The bulb X will glow first done clear
  B)
  The bulb Y will glow first done clear
  C)
  The bulbs Z and X will glow first done clear
  D)
  All the bulbs will glow simultaneously. done clear
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• question_answer19)
  Manu connected three bulbs to a cell as shown in figure. She found that filament of bulb is broken. Which of the following statements is correct?
  A)
  Only bulb R will glow. done clear
  B)
  Only bulb P will glow. done clear
  C)
  Both bulbs P and R will glow. done clear
  D)
  None of the bulbs will glow. done clear
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• question_answer20)
  Given diagram is a torch containing cells. The torch is not glowing when the switch is ON. Now, it is opened to know the reasons. Which of the following statements are correct regarding the reasons?      

  (i) Bulb of the torch is fused.

  (ii) Cells are not connected properly.

  (iii) The metal parts of the torch do not make proper contact with the cell.

  A)
  Only (i) and (ii) done clear
  B)
  Only (ii) and (iii) done clear
  C)
  Only (i) and (iii) done clear
  D)
  All (i), (ii) and (iii) done clear
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