CBSE Class 12-science Answered
A body at rest of mass 2mg and charge 2C placed inside uniform electric field intensity 2 dyne/ esu. If the distance travel by the charge body is 5m . Find the time taken by the charge body in this process.
Asked by Naira | 24 Jun, 2018, 04:23: PM
Expert Answer
Electric field intensity
force experienced by 2 C charge = 2×6×104 N/C= 12×104 N/C
acceleration of mass 2 mg =
Time t to travel a distance 5 m starting from rest is obtained by using the formula "S = ut+(1/2)at2 ", with initial velocity u = 0 ;
hence we have,
solving for t using eqn.(1), we get t = 0.41 milli second
Answered by Thiyagarajan K | 24 Jun, 2018, 11:14: PM
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