Electronics Information- Resistance

Question 1

Opposition to the flow of current is known as what?

Answer 1

Resistance

Question 2

Resistance is measured in what?

Answer 2

Ohms (Greek Letter Omega)

Question 3

The amount of resistance that will allow one ampere of current to flow is one volt of electrical pressure is placed on a conductor.

Answer 3

One Ohm

Question 4

Resistance can be measured with what tool?

Answer 4

Ohmmeter

Question 5

As resistance in a conductor increases, current flow what?

Answer 5

Decreases

Question 6

Current and Resistance are What kind of proportional?

Answer 6

Inversely Proportional

Question 7

Voltage and Current are what kind of proportional?

Answer 7

Directly Proportional -Any time Voltage increases, so does Current.

Question 8

The smaller the resistance a material, the WHAT a conductor it is.

Answer 8

BETTER

Question 9

In Essence, materials with high resistance (poorer conductors), a higher voltage must be used to get the same what?

Answer 9

Same Current

Question 10

Which conductors have a certain amount of resistance?

Answer 10

All

Question 11

What 3 materials are used as conductors most often?

Answer 11

Silver
Copper
Aluminum

Question 12

Which of the 3 conductors is the best to use?

Answer 12

Silver

Question 13

Why is Silver the best conductor?

Answer 13

It has the lowest resistance.

Question 14

What is the downside of Silver?

Answer 14

Expensive

Question 15

What is the next best material than Silver?

Answer 15

Copper- despite slightly higher resistance.

Less expensive as Silver.

Question 16

What are most electrical cables and wire currently made from?

Answer 16

Copper

Question 17

What is the deal with Aluminum

Answer 17

It has higher resistance but is the cheapest of the three materials.