Is it possible for the electric field between two positive charges to equal zero along the line joining the two charges?
1 answer:
Answer:
Yes electric field between the line joining may be zero when both the charges are of opposite magnitude
Explanation:
Electric field due to a point charge is given by
From the relation of magnitude of electric field we can see that magnitude of electric field depends upon the m,magnitude of charge and distance between them
So electric field between the line joining may be zero when both charges are of opposite magnitude ( Means if one charge is positive then other is negative )
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The correct answer is:
<span>B.) At terminal velocity there is no net force
In fact, when the parachutist reaches the terminal velocity, his velocity does not change any more. It means that the acceleration acting on the parachutist is zero, and for Newton's second law, this means the net force acting on him is zero:
</span>
<span>because the acceleration is zero: a=0.
This also means that the two relevant forces acting on the parachutist (gravity, downward, and air resistance, upward) are balanced to produce a net force equal to zero.</span>
<span>B.) At terminal velocity there is no net force
In fact, when the parachutist reaches the terminal velocity, his velocity does not change any more. It means that the acceleration acting on the parachutist is zero, and for Newton's second law, this means the net force acting on him is zero:
</span>
<span>because the acceleration is zero: a=0.
This also means that the two relevant forces acting on the parachutist (gravity, downward, and air resistance, upward) are balanced to produce a net force equal to zero.</span>