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if positively charged particle of certain mass may be held suspended (at rest) in electric field of suitable strength if tne field is directed upward downward outward inward

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

Grade:12

2 Answers

Chinmay
11 Points
3 years ago
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 . 
Vikas TU
14149 Points
3 years ago
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 

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