General basic electricity

Question 1

Four things that affect the resistance of an electrical conductor

Answer 1

The material cross-sectional area length and the temperature

Question 2

Why don’t we use electrolytic Capacitors an AC circuit

Answer 2

They are polarized the electrolytic Capacitorswill pass current from one polarity but will block the current of the opposite polarity

Question 3

The three elements of ohms law

Answer 3

Voltage resistance and current

Question 4

Five sources of electrical energy

Answer 4

Magnetism heat and pressure chemical energy and light

Question 5

The basic unit of current

Answer 5

Amp

Question 6

The basic unit of resistance

Answer 6

Ohm

Question 7

What is the basic unit of Capacitance

Answer 7

Farad

Question 8

What is the basic unit of voltage

Answer 8

The volt

Question 9

How can you tell the resistance of a composition resistor

Answer 9

By the color of the bands on the end of the resister

Question 10

What three things must all electrical circuits have

Answer 10

A source of electrical energy a load to use the energy and conductors to join the source and the load

Question 11

What is the purpose of a capacitor

Answer 11

To store electrical energy in electrostatic fields

Question 12

The law of electricity every mechanic should know

Answer 12

Ohms law

Question 13

Basic unit of inductance is

Answer 13

Henry

Question 14

What is meant by inductance

Answer 14

Ability to store Electricalenergy and electrostatic fields

Question 15

what is impedance ?

Answer 15

The opposition Turn the flow of alternating current and the vector sum of resistance capacitive reactants and inductive reactance

Question 16

How can you find the polarity of an electromagnet

Answer 16

Hold the electromagnet your left hand with your fingers and circling the coil in the direction of the electron flow and you’re down will point to the north and of the electromagnet

Question 17

What unit is impedance measured?

Answer 17

Impedance is measured in Ohms

Question 18

What is the basic unit of electrical power in the DC circuit?

Answer 18

The Watt

Question 19

What is meant by a kilowatt?

Answer 19

1000 Warts

Question 20

What happens in a DC circuit if voltage increase but resistant stay the same?

Answer 20

The current increases.

Question 21

What are three types of DC circuits with regard to the placement of various circuit components?

Answer 21

Series parallel and series parallel.

Question 22

How many cells are there in a Volt lead acidbattery?

Answer 22

12 cells