Four identical 2.5-mF capacitors are connected together electrically. What is the greatest possible capacitance of the combination?

a. 0.50 mF
b. 0.42 mF
c. 0.63 mF
d. 10 mF
e. 0.40 mF


d

Physics & Space Science

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The two strongest forces that act between protons in a nucleus are

A) the weak nuclear and electromagnetic forces. B) the weak nuclear and the gravitational forces. C) the electrostatic and the gravitational forces. D) the strong nuclear and the electrostatic forces.

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A charge of uniform density (0.80 nC/m) is distributed along the x axis from the origin to the point x = 10 cm. What is the electric potential (relative to zero at infinity) at a point, x = 18 cm, on the x axis?

a. 7.1 V b. 5.8 V c. 9.0 V d. 13 V e. 16 V

Physics & Space Science