PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoCheck the assertion and reason then, choose the best option:
1) Assertion: When a glass rod is rubbed with a silk cloth, the glass rod acquires a negative charge, and silk becomes positive.
Reason: The glass rod loses electrons; it has a deficiency of electrons and hence acquires positive charge. But, the silk cloth has an excess of electrons. So, it becomes negatively charged.
2) Assertion: While combing hair, charges are not transferred from the hair to the comb due to friction.
Reason: Rubbing certain materials with one another can cause the build-up of electrical charges on the surfaces.
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