Electric circuits_Exceeding

The electrical network in my house is a

• Series circuit

• Short circuit

• Parallel circuit

What is the main reason why the light bulb in the circuit shown above fails to light up?

• The wires from the second light bulb are not properly connected to the battery

• The wires are not properly connected between the light bulbs

• The wires are not connected to both sides of the first light bulb

• The wires are too short to complete the circuit

The diagram shows a series circuit with three lit bulbs. How many of the bulbs will remain lit if the wire is cut at the point shown by the arrow?

• 0

• 1

• 2

• 3

If bulb 2 burns out, what will happen?

• bulbs 1 and 3 will go out

• bulbs 1 and 3 receive more volts

• bulbs 1 and 3 will stay lit

• nothing will happen

Follow the path.

Which image demonstrates a flow of electrical current ?

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Match the following symbols with the name of the circuit components.

• Wire

• 
• Open switch

• 
• Bulb or Lamp

• 
• Buzzer

• 
• Motor

• 

Look at all these circuits. Which one(s) could have brighter lamps?

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Compare the brightness of the bulbs in circuits B and D.

• Both of them have the same brightness.

• Circuit B is dimmer.

• Circuit D is dimmer.

• Circuit D is brighter.

• Circuit B does not have the bulb on.

Classify the following materials into electrical conductor electrical insulator

Groups:

(a) Electrical insulator

,

(b) Electrical conductor

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What property is measured by conductivity to determine how well electricity can move through a material?