Electrostatics
If 2 bodies are oppositely charged with 400µC and 200µC, the distance between them in the air is 0.5 m. The force between the bodies should be
2880 N
3000 N
1850 N
3250 N
2880 N
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Due to electrostatic induction in aluminum rod due to charged plastic rod, the total charge on the aluminum rod isA. zero
B. positive
C. negative
D. dual
In the combination of parallel capacitors, the right plate of each capacitor is connected to the battery’s
A. no terminal
B. both negative and positive terminals
C. negative terminal
D. positive terminal
The electrostatic force acting on two charges of 1C separated by 1m is about
A. 4×109
B. 6×109
C. 8×109
D. 9×109
The amount of work done in bringing unit positive charge from infinity to a point in electric field is called
A. coulomb’s force
B. electrostatic force
C. electric potential
D. resistance
The spacing between field lines shows their
A. direction
B. position
C. strength
D. none of above
One micro coulomb is equal to
A. 10-6
B. 10-8
C. 10-4
D. 10-9
The property of attraction or repulsion between substances is due to the
A. electric charges
B. neutrons
C. atoms
D. capacitors
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