Electricity and Circuits

Electricity and Circuits

14 Maths Exercise Solutions

Fill in the blank :
A device that is used to break an electric circuit is called___.
Exercises, Question No.1
Fill in the blank :
A device that is used to break an electric circuit is called___.
Fill in the blanks:
An electric cell has ___ terminals.
Exercises, Question No.2
Fill in the blanks:
An electric cell has ___ terminals.
Mark true or false for the following statement:
Electric current can flow through metals.___
Exercises, Question No.3
Mark true or false for the following statement:
Electric current can flow through metals.___
Mark true or false for following statement:
Instead of metal wires, a jute string can be used to make a circuit.___
Exercises, Question No.4
Mark true or false for following statement:
Instead of metal wires, a jute string can be used to make a circuit.___
Mark true or false for following statement:
Electric current can pass through a sheet of thermocol.___
Exercises, Question No.5
Mark true or false for following statement:
Electric current can pass through a sheet of thermocol.___
Explain why the bulb would not glow in the arrangement shown in figure?
Exercises, Question No.6
Explain why the bulb would not glow in the arrangement shown in figure?
Complete the drawing shown inthe figure to indicate where the free ends of the two wires should be joined to make the bulb glow.

Exercises, Question No.7
Complete the drawing shown inthe figure to indicate where the free ends of the two wires should be joined to make the bulb glow.

What is the purpose of using an electric switch?
Exercises, Question No.8
What is the purpose of using an electric switch?
Name some electrical gadgets that have switches built into them.
Exercises, Question No.9
Name some electrical gadgets that have switches built into them.
Would the bulb glow after completing the circuit shown in figure if instead of safety pin we use an eraser?

Exercises, Question No.10
Would the bulb glow after completing the circuit shown in figure if instead of safety pin we use an eraser?