A Variable Capacitor Is Connected to an Ac Source

question 44

Multiple Choice

A variable capacitor is connected to an ac source. What effect does decreasing the capacitance have on the reactance and current in this circuit?

---

Definitions:

Initial Velocity

The velocity of an object at the start of a time interval.

Coin

A piece of metal, usually flat and circular, authorized by a government for use as money.

Parabola

A U-shaped curve, represented mathematically as the graph of a quadratic function.

Vertex

In the context of geometry and graph theory, a vertex is a point where two or more curves, edges, or lines meet. In the context of quadratic functions, it is the highest or lowest point of the parabola.