Exam 2: Electrical Quantities and Ohms Law

What law states that the force of electrostatic attraction or repulsion is directly proportional to the product of the two charges and inversely proportional to the square of the distance between them?

A grounding conductor helps prevent a shock hazard in the event that an ungrounded, or hot, conductor comes in contact with the case or frame of an appliance.

If a circuit is open, current flow.

The amount of potential necessary to cause one coulomb to produce one joule of work is a(n) .

What type of circuit generally occurs when the conductors leading from and back to the power source become connected?

An electric motor is running on 120 V. The current is measured to be 2 A. How many ohms of resistance is the motor?

The statement, "In a DC circuit, the current is directly proportional to voltage and inversely proportional to resistance," is know as law.

During normal operation of a typical 120-volt appliance circuit, current flows through the hot, grounding, and neutral conductors.

What is another term for electromotive force (EMF)?

What causes a wire to become warm when current flows through it?

One coulomb per second is equal to one .

An electrical circuit has a voltage of 50 V and a resistance of 5 Ω. What is the value of current?

Approximately how many horsepower is an electrical device listed as 3,000 watts?

The theory concerning current flow that is most widely accepted as being correct is the flow theory.

Conventional current flow theory states that current flows from the most positive point to the most _______________.

What standard prefix in engineering notation indicates multiplication by 1,000,000,000?

The neutral conductor is also referred to as the conductor.

Voltage flows through an electric circuit like water flows through a pipe.

The grounding prong of a plug should never be cut off or bypassed.

The amount of electrical power being used in a circuit is measured in .