EG1 CH.1

Question 1

The physicist and pioneer in electricity from a noble family in Como Italy.

Answer 1

Count Alessandro Volta

Question 2

What was the first battery called?

Answer 2

Voltaic Pile

Question 3

What was the first battery made of?

Answer 3

stacked discs of coper, zinc, and cardboard soaked in salt water.

Question 4

Where did the word volt come from?

Answer 4

Is named after count Volta.

Question 5

What is voltage?

Answer 5

Voltage is electric pressure or electromotive force

Question 6

What unit measures electric pressure?

Answer 6

The volt

Question 7

Voltage is synonymous with what?

Answer 7

electric pressure and electromotive force

Question 8

The concept of voltage is similar to what other element?

Answer 8

water pressure

Question 9

In the power system design voltage affect many things, what are some of them?

Answer 9

The amount of insulation needed for a given power line, The separation between line conductors, Safe working practices, and The types of tools needed to work on the lines.

Question 10

From what two points is voltage taken from?

Answer 10

Line-to-neutral and line-to-line

Question 11

What are the typical distribution system voltages?

Answer 11

7200/12470, 7600/13200, 12000/20800, & 19900/34500

Question 12

Why do transmission lines have only one reading?

Answer 12

Transmission lines do not carry a neutral conductor.

Question 13

When would distribution line have only one reading?

Answer 13

If the are underground and thus have no neutral.

Question 14

Who was the French physicist who laid the foundations for science of electrodynamics through his demonstration that electric currents produce magnetic fields?

Answer 14

Andre Ampere

Question 15

What unit measures current flow?

Answer 15

The amp

Question 16

What is a coulomb?

Answer 16

The quantity measurement of electrons.

Question 17

How many electrons in one coulomb?

Answer 17

6.25 quintillion

Question 18

What does it mean when one amp of current flows?

Answer 18

It means that a coulomb of electrons passes a given point in one second.

Question 19

What is an amp defined as?

Answer 19

An amp is defined as one coulomb per second and is the measurement of the flow of electric current

Question 20

Amperage is similar to what other element?

Answer 20

Gallons per minute in a water system

Question 21

What does an ammeter or amp meter tell us?

Answer 21

An amp meter reads the number of coulombs per second flowing in a circuits, which tells us the number of amps of current flow.

Question 22

Why is Amperage important?

Answer 22

Amperage is important because wires are rated for a given amount of current flow.

Question 23

What happens if the amperage rating of a wire is exceeded?

Answer 23

The wire melts due to the added friction created by the colliding electrons in the wire.

Question 24

What allows greater conduction solid or stranded wires?

Answer 24

Stranded wires

Question 25

In terms of speed how is light and current different?

Answer 25

Light travels a given distance and current is an impulse.