CBSE Questions for Class 6 Physics Electricity And Circuits Quiz 1 - MCQExams.com

A closed path through which electricity flows is called a circuit.
  • True
  • False
Bulbs of rating 60W, 220V and 250W, 220V are connected in series and their combination is connected to 440 V supply. Which bulb will fuse?
  • 60W
  • 250 W
  • Both
  • Neither.
Three 100 W light bulbs are connected in series to a 220 V power source.If two of the light bulbs are replaced by 60 W bulbs the brightness of the remaining 100 W bulb is 
  • Brighter than it was before
  • Dimmer than it was before
  • The same brightness as it was before
  • Will not illuminate
Electric current can flow through-
  • Silver
  • Copper
  • Iron
  • All of these
If we touch a naked current carrying wire, we get a shock. This is because our body is a :
  • conductor of electricity
  • insulator of electricity
  • source of electricity
  • both B&C
An electric bulb rated $$220\ V, 60\ W$$ is working at full efficiency. Another identical bulb is connected across the mains as shown.
What is total power consumption?
799926_9f4e7a8287684674bb6b0251257b8533.jpg
  • $$20\ W$$
  • $$40\ W$$
  • $$30\ W$$
  • $$60\ W$$
Why does an electric bulb fuse?
  • Break in bulb's filament.
  • Break in bulb's outer glass cover.
  • Poor quality of bulb.
  • None of the above.
For which of the following arrangements will the bulb glow?
1950879_3fab49d6f53c4b87a734e2198df5b5be.png
  • (b) and (c)
  • (a) and (f)
  • (d) and (e)
  • (a) and (d)
How many terminals does an electric bulb have?
  • One
  • Two
  • Three
  • Four
Electric current is to be passed from one body to another. For this purpose the two bodies must be joined by
  • cotton thread
  • plastic string
  • copper wire
  • rubber band
State whether true or false:
Electric charges leak rapidly from the painted edges of a conductor.
  • True
  • False
Which is/are the  insulators ?
  • wax
  • silver
  • ebonite
  • gold
Copper metal is a:
  • good conductor of electricity
  • bad conductor of electricity
  • magnetic substance
  • bad conductor of heat
  • none of these
The insulator of electricity is :
  • copper
  • silk
  • human body
  • acidulated water
Electrical charge can be transferred from a charged object to another through :
  • Vacuum
  • Air
  • Insulators
  • Conductors
Pooja connects a second cell in a simple circuit, how will this effect the brightness of the bulb?
  • It will stop glowing
  • It will cause the bulb to fus
  • It will become dimmer.
  • It will become brighter
Name the material used for making the connection wires.
  • tin
  • copper
  • lead
  • tungsten
Fill in the blank.
Connecting wires in a electric circuit are made of .......
  • copper
  • silicon
  • tin
  • lead
A charged conductor has charge on its
  • outside surface
  • surrounding
  • middle point
  • inner surface
The two places on a battery to which the circuit wires can be attached are called:
  • Switch
  • Filament
  • Terminals
  • Insulators
The energy stored in the dry cell is in the form of .......... .
  • $$electrical\ energy$$
  • $$chemical\ energy$$
  • $$heat\ energy$$
  • None of these
Insulators:
  • Conduct electricity
  • Do not conduct electricity
  • Conduct electricity only at low temperatures
  • Conduct electricity at room temperature
A material that lets electricity to pass through it is called a/an:
  • electrical conductor
  • electrical insulator
  • electrical appliance
  • key
A potato can be used to find the polarity of a cell
  • True
  • False
  • Ambiguous
  • Data insufficient
State True or False :
The materials, which do not allow electric current to pass through them easily, are poor conductors of electricity.
  • True
  • False
Which of the follwing does not belong to the group formed by the others?
  • Iron
  • Tin
  • Glass
  • Steel
The path of electricity is called:
  • circuit
  • filament
  • orbit
  • none of these
A material that does not allow electricity to flow through it is called a/an:
  • Electrical conductor
  • Electrical insulator
  • Electrical appliance
  • Key
A material that does not allow electricity to flow through it is called a/an-
  • Electrical appliance
  • Electrical conductor
  • Electrical Insulator
  • None of these
A closed circuit has its every part made of_______
  • conducting material
  • non-conducting material
  • semi-insulating material
  • None of these
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