Which best describes the electric field created by a positive charge?
2 answers:
Answer:
Its rays point away from the charge.
Explanation:
The electric field due to a point charge is given by :
Where
k is the electrostatic constant
q is the point charge
r is the distance from charge particle
It is clear that the electric field is directly proportional to the charge and inversely proportional to the distance from charge particle.
There are two types of charged particle i.e. negative and positive charge. For a positive charge, the direction of electric field points away from it and for a negative charge, the direction of electric field points towards it.
Hence, the correct option is (c).
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Answer:
Magnetic force,
Explanation:
Given that,
A beryllium-9 ion has a positive charge that is double the charge of a proton,
Speed of the ion in the magnetic field,
Its velocity makes an angle of 61° with the direction of the magnetic field at the ion's location.
The magnitude of the field is 0.220 T.
We need to find the magnitude of the magnetic force on the ion. It is given by :
So, the magnitude of magnetic force on the ion is .