Physics
Grade-7
Easy
Question
Which of the following statements is correct about a switch?
- It allows the flow of electricity.
- It controls the power of the batteries.
- It fuses a bulb.
- It controls the brightness of a bulb.
Hint:
Switch operation.
The correct answer is: It allows the flow of electricity.
Switch controls the flow of current by breaking the circuit and stopping the flow of current in open condition while makes the current flow by completing the circuit in closed condition.
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