Which of the following statements are INCORRECT about electricity?(i) ...
Explanation:
Electricity is a fundamental aspect of our daily lives, and understanding its basic principles is essential. Let's analyze each statement to identify the incorrect ones.
Statement (i): A circuit must be open for electricity to flow.
- This statement is incorrect. In fact, a circuit must be closed for electricity to flow. When a circuit is closed, it forms a complete path for the flow of electricity. If a circuit is open (broken), electricity cannot flow.
Statement (ii): Conductors allow electricity to pass through them.
- This statement is correct. Conductors are materials that allow the flow of electricity through them. Metals like copper and aluminum are good conductors of electricity.
Statement (iii): Insulators prevent electricity from passing through.
- This statement is correct. Insulators are materials that do not allow the flow of electricity through them. Examples of insulators include rubber, plastic, and glass.
Statement (iv): A switch can open or close a circuit.
- This statement is correct. A switch is a device that can either open (break) or close (complete) a circuit. When a switch is turned on, it closes the circuit, allowing electricity to flow. When it is turned off, it opens the circuit, interrupting the flow of electricity.
Therefore, the incorrect statements about electricity are (i) and (ii) only.
Which of the following statements are INCORRECT about electricity?(i) ...
A circuit must be closed for electricity to flow. Conductors allow electricity to pass through, insulators prevent it, and switches can open or close a circuit.
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