Question

SCIENCE QUESTION ❓ PLEASE ANSWER ​​

Answer 1

Answer:

the answer was alredy in the photo it is 72

Explanation:

Answer 2

Answer:

Electric Potential

Explanation:

★ Given ;

» diameter of hollow Sphere => 40 cm

» charge = 16 × 10-¹⁰ c

★ Electric potential ( V ) = K × Q / R

A ] Potential at surface

V = K × Q / r

= 9 × 10⁹ × 16 × 10-¹⁰ / 20 × 10-² m

= 9 × 16 × 10-¹ × 10² / 20

= 1440 / 20

★ V ( surface ) = 72 Volts . ★

B ] Potential inside sphere

» potenial at surface and at inside has same value

no change the formula also same.