11. A spherical shell has an inner radius of 3.7 cm and anouter radius of 4.5 cm

Question

11. A spherical shell has an inner radius of 3.7 cm and anouter radius of 4.5 cm. If charge is distributed uniformly throughout the shell with a volumedensity of 6.1 × 10–4 C/m3 the total charge is: A) 1.0 × 10–7 C B) 1.3 × 10–7 C C) 2.0 × 10–7 C D) 2.3 × 10–7 C E) 4.0 × 10–7 C 11. A spherical shell has an inner radius of 3.7 cm and anouter radius of 4.5 cm. If charge is distributed uniformly throughout the shell with a volumedensity of 6.1 × 10–4 C/m3 the total charge is: A) 1.0 × 10–7 C B) 1.3 × 10–7 C C) 2.0 × 10–7 C D) 2.3 × 10–7 C E) 4.0 × 10–7 C

Explanation / Answer

charge = density * volume = 6.1E-4*(4/3*pi* (.045^3-0.037^3))=1.0E-7 C

so A)

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