Question

The total electric flux through a closed cylindrical (length = 1.2 m , diameter = 0.20 m) surface is equal to −5 0. Nm / C^2. Determine the net charge within the cylinder in pC? (εo = 8.85z10^-12)
a) – 71
b) – 62
c) – 53
d) – 44
e) –16

Answer 1

Answer:

d) – 44

Explanation:

given information:

length, l = 1.2 m

diameter, d = 0.2 m

flux, Φ = -5.0 Nm/C²

ε₀ = 8.85 x 10⁻¹²

to find the net charge of the cylinder, we use the following step

Φ = E/A

    = Q/ε₀

Q = Φ ε₀

   = (-5.0) (8.85 x 10⁻¹²)

   = - 44.25 x 10⁻¹² C

   = - 44 pC (d)