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1A glass rod rubbed with silk acquires a charge of 8 x 10^-12 C. The number of electrons it has gained or lost is __________.
- A5 x 10^-7 (gained)
- B5 x 10^-7 (lost)
- C2 x 10^-8 (lost)
- D-8 x 10^-12 (lost)
2The electrostatic force between two point charges kept at a distance "d" apart in a medium of εr = 6, is 0.3 N. The force between them at the same separation in vacuum is __________.
- A20 N
- B0.5 N
- C1.8 N
- D2 N
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- Higher School Certificate(HSC ) Physics Quiz on Untitled, created by Susanna Marian C on 25/12/2015.
- Author
- Susanna Marian C
- Language
- English
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