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Grade: 12
if positively charged particle of certain mass may be held suspended (at rest) in electric field of suitable strength if tne field is directed
  1. upward
  2. downward
  3. outward
  4. inward
one month ago

Answers : (2)

11 Points
Upward so the electrostatic force Eq on + charge can balence the gravitational force mg. As the object to be at rest all the forces should cancel each other out so as net force is zero . 
21 days ago
Vikas TU
10040 Points
Dear student 
Please specify the force acting on the particle, 
If it is only Gravitational force then , particle will experience force downward, 
So electric field must be upward.
Good Luck 
11 days ago
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