If a = 7 × 10−6 C/m4 and b = 1 m, find E at r = 0.6 m. The permittivity of a vacuum is 8.8542 × 10−12 C 2 /N · m2 . Answer in un
1 answer:
Answer:
The electric field potential (E) is 1.75 X 10⁵ N/C
Explanation:
Electric field potential (E) is force per unit charge.
Electric field potential (E) = force/charge = f/q, unit is Newton (N) per Coulomb (C); N/C
where;
q is charge in coulomb (C)
ε is permittivity of free space = 8.8542 X 10⁻¹² C²/Nm²
if a = 7 X 10⁻⁶ C/m⁴ and b = 1m
a in "C" =
Electric field potential at r = 0.6m =
E = = 1.75 X 10⁵ N/C
Therefore, the electric field potential (E) is 1.75 X 10⁵ N/C
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D. distance = 23 m, displacement = + 1 m
Explanation:
Let's remind the difference between distance and displacement:
- distance is a scalar, and is the total length covered by an object, counting all the movements in any direction
- displacement is a vector connecting the starting point and the final point of a motion, so its magnitude is given by the length of this vector, and its direction is given by the direction of this vector.
In this case, the distance covered by Karen is given by the sum of all its movements:
The displacement instead is given by the difference between the final point (1.0 m in front of the starting line) and the starting point (the starting line, 0 m):