A dry plastic comb used in combing hair was found to attr...
A dry plastic comb used in combing hair was found to attract pieces of paper and dust. The most probable explanation for this phenomenon is that the comb has been given
magnetization by induction
electric charges by induction
electric charges by conduction
electric charges by friction
Correct answer is D
No explanation has been provided for this answer.
Which of the following i. β-particles ii. protons iii. neutrons iv. α-particl...
If the frequency of the ac. circuit illustrated above is 500/π Hz what would be the reactance in ...
The Earth's magnetic equator passes through Jos in Nigeria. At Jos, the ...