Exam 2: Electrical and Physics Concepts

Electrical force exerted by two point charges on each other is inversely proportional to

Most appropriate instrument for measurement of internal and external diameter of a tube is

Highest point on AC graph is known as

In order to keep a body moving in a circle, there exists a force on it that is directed toward the center of the circle. This force is known as

Ratio of voltages is inverse ratio of the

Kinetic friction is always

Process in which A.C is converted into D.C is called

In transformer, alternating current is induced in

High voltages lead to

Steady d.c voltage is also known as

A well designed transformer loses power under

A rectangle-shaped open-to-sky tank of water has a length of 2 m and a width of 1 m. If the atmospheric pressure is assumed to be 100 kPa and thickness of the tank walls is assumed to be negligible, the force exerted by the atmosphere on the surface of water is

If we have a positive and a negative charge, then force between them is

If charge is placed at infinity, it's potential is

Graph of alternating current is a

Ratio of voltages is equal to ratio of

Gravitational potential is always

If output voltage is greater than input voltage, then transformer is

A component that allows only unidirectional current to pass through it is

Amount of d.c voltage as compare to Vo is