(a) The magnitude of the charge on sphere is 1.52 x 10⁻⁸ C.
(b) The total electric flux leaving surface of sphere is 1,717.86 Nm²/C.
(c) The electric field at surface of sphere is 91.82 N/C.
<h3>
Charge on sphere</h3>
The charge on the sphere is calculated as follows;
Q = Aσ
where;
A = 4πr²
A = 4π(1.22)² = 18.7 m²
Q = (18.7) x (8.13 x 10⁻⁶ x 10⁻⁴)
<em>note: 1 cm² = 10⁻⁴ m²</em>
Q = 1.52 x 10⁻⁸ C
<h3>Total electric flux</h3>
Ф = Q/ε₀
Φ = (1.52 x 10⁻⁸) / (8.85 x 10⁻¹²)
Φ = 1,717.86 Nm²/C
<h3>Electric field at surface of the sphere</h3>
E = Ф/A
Learn more about electric flux here: brainly.com/question/26289097
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