Question

An air-filled parallel-plate capacitor has a capacitance of 1 pF. The plate separation
is then doubled and a wax dielectric is inserted, completely filling the space between the
plates. As a result, the capacitance becomes 2 pF. The dielectric constant of the wax is:
A. 0.25
B. 0.5
C. 2.0
D. 4.0
E. 8.0

Answer 1

Answer on Question#40932 – Physics - Mechanics | Kinamatics | Dynamics

Uniform circular motion is a direct consequence of:

A. Newton’s 3rd law

B. force that is tangent to path

C. acceleration that is tangent to the path

D. a force of constant magnitude that is always directed away from the same fixed point

E. a force of constant magnitude that is always directed towards the same fixed point

Solution:

The force is centripetal and is always directed towards the fixed center, hence the correct answer is E.

Answer: E. a force of constant magnitude that is always directed towards the same fixed point

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