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A positively charged glass rod repels a ...

A positively charged glass rod repels a suspended object. Can we conclude that the object is positively charged ?

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Yes. Repulsion takes place only between the similarly charged bodies. Hence it is the surest test.
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BINA LIBRARY-ELECTROSTATICS-EXERCISE
  1. Two adjacent conductors are carrying the same positive charge. Can the...

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  2. A positively charged glass rod attracts a suspended object. Can we con...

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  3. A positively charged glass rod repels a suspended object. Can we concl...

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  4. A car is travelling at a speed of 90 km/h. Brakes are applied so as to...

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  5. Why do electrostatics not work well in humid days ?

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  6. A man inside an insulated metallic cage does not receive a shock, when...

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  7. The observation deck of tall skyscraper 370 m above the street. Determ...

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  8. Two point charges of +3 *10^-19C and +2 * 10^-19 C are separated by a ...

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  9. Calculate the magnitute of electrostatic force between a proton and an...

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  10. Two charges each of magnitude 4muC are placed at two corners of an equ...

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  11. An electrle dipole when held at 30° with respect to a uniform electric...

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  12. An electric dipole of length 2cm is placed with its axis at an angle o...

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  13. An electric dipole of length 2cm is placed with its axis at an angle o...

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  14. A conducting sphere of radius 10cm has unknown charge. If the electric...

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  15. Two plates of a parallel plate capacitor have an area of 100 cm^2 each...

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  16. A capacitor of 20 µF and charged to 500 V is connected in parallel wit...

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  17. A parallel plate capacitor of capacity 100 muF is charged to 500 V. If...

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  18. The distance between the plates of a parallel plate capacitor is 5 mm ...

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  19. The potential difference between two parallel plates 1 cm apart is 100...

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  20. A 400 pF capacitor is charged by a 100V battery. How much electrostati...

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