Answer:
Magnetic field,
Explanation:
It is given that,
Velocity of proton,
Magnetic force,
Charge of proton,
We need to find the strength of the magnetic field if there is a 45° angle between it and the proton's velocity. The formula for magnetic force is given by :
B = 0.0000416 T
Hence, this is the required solution.
To solve this problem it is necessary to resort to the energy conservation equations, both kinetic and electrical.
By Coulomb's law, electrical energy is defined as
Where,
EE = Electrostatic potential energy
q= charge
d = distance between the charged particles
k = Coulomb's law constant
While kinetic energy is defined as
Where,
m= mass
v = velocity
There by conservation of energy we have that
EE= KE
There is not Initial kinetic energy, then
Replacing with our values we have,
Therefore the speed of particle B at the instat when the particles are 3m apart is