PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoAttempt the following questions.
Explain how the electrical properties of materials determine whether a bulb glows in a simple electric circuit. Based on this, describe how materials can be classified into conductors and insulators with suitable examples.
In a , a bulb glows only when flows through the circuit. The ability of a material to allow electric current to pass through it depends on its electrical properties.
Materials that allow electric current to pass through them easily are called . When a conductor (such as a metal spoon or copper wire) is placed in the circuit, it completes the circuit, allowing current to flow and the bulb to glow.
On the other hand, materials that do not allow electric current to pass through them are called . When an insulator (such as rubber or plastic) is placed in the circuit, it breaks the circuit, preventing the , so the bulb does not glow.
Thus, by observing whether the bulb glows or not, we can classify materials into:
Conductors (e.g - )
Insulators (e.g - )
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