The mineral that's essential to maintaining healthy bones and teeth is
D-. calcium
Answer:
Explanation:
To solve this problem we need to apply the concept relate to Coulomb's law.
We know that the Force given by Coulomb is
Where ,
F= electrostatic force
q= electric charge
r= distance between charge centers
k= Coulomb constant =
We have the values only to replace in the equation, then we have,
Answer:
Magnitude of electric field = E = q/Aε0
Explanation:
Consider plates are placed at a distance of d. As given in the question the charge stored on the plates have magnitude q and given by:
q = CV
And
V = q/C ……. (i)
The capacitance is given by the following equation:
C = Aε0/d ……. (ii)
Put equation (ii) in (i)
,
V = qd/ Aε0 …..(iii)
The electric field is defined as:
E = V/d …… (iv)
Put equation (iii) in (iv),
E = qd/ Aε0d
E = q/Aε0
Hence, the magnitude of electric field will be q/Aε0 .