An electric current produces a magnetic field when the current flows through a wire. The correct answer will be A.
Answer:
Ender's mass = 2.25 kg
Explanation:
using law of conservation of momentum .
since there is inelastic collision
given.
When the particle is suspended motionless its weight is in equilibrium with the force applied on through the electric field. Thus
From this equality we can deduce the charge of the droplet necessary for the particle to stay suspended:
where m is its mass and E is the electric field that is applied.
Answer:
Part a)
W = 16.7 N
Part b)
r = 2.45 R
Explanation:
Part a)
As we know that acceleration due to gravity on the surface of moon is 1/6 times the gravity on the surface of earth
So the force due to gravity will decrease by the factor of 6
so we will have
Part b)
For the same value of the weight as the surface of moon the acceleration due to gravity of earth must be 1/6 times
so we have