SELECT * FROM question_mgmt as q WHERE id=1288 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=2 AND subId=9 AND chapterId=43 and ex_no='1' AND status=1 ORDER BY CAST(question_no AS UNSIGNED)
In Milikan’s experiment, static electric charge on the oil drops has been obtained by shining X-rays.
If the static electric charge on the oil drop is –1.282 × 10–18C, calculate the number of electrons present on it.
Charge carried by the oil drop = 1.282 ×10–18C
Charge carried by one electron = 1.6022 × 10–19C
∴electrons present on the oil drop carrying 1.282x10-18C charge
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