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Question

An electric field of magnitude 1000N/C is produced between two parallel plates having a separation 2m
i) The potential difference between the plates is
ii) Minimum speed of electron that is projected from lower plate in the direction of field so that it may reach upper plate is :
  1. 20V,5.62×106m/s
  2. 40V,6.25×106m/s
  3. 20V,2.65×106m/s
  4. 25V,2.56×106m/s

A
20V,5.62×106m/s
B
25V,2.56×106m/s
C
40V,6.25×106m/s
D
20V,2.65×106m/s
Solution
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