Electricity test 1

When current flows up its called positive and when it flows down its called negative, true or false?

False. Flows from positive to negative not up and downThe statement is false. Current flows from positive to negative terminals, not in an upward or downward direction.

What does current create when it flows through a coil wire?

Magnetism

Current and Voltage are the same things?

False. Current-Flow Voltage- Force

True or False. Matter can be broken down into molecules which are the smallest particles of physical object.

True

True or False? An ampere is when you have one ohm of resistance or one volt?

True. 1 amp = 1 ohm and 1 volt

True or False. If you measure pressure or push of a circuit that’s volts not Jules

False. The reverse is true.

True or False, If you have one ohm and one amp it causes on volt

True

True or False, If you say that the power of a spotlight is 100 watts it means the same thing as power. Watts=Power

True

What is a term to measure inductance?

Henry

What is the symbol for Henry (Inductance)

L

What is Inductance?

Inductance is a magnetic field of force.

True or False. A series circuit that has two loads can be called a parrallel circuit?

False

if the voltage is 120 volts and the amps is 120 volts what is the resistance?

1. Ohms law of I=E/R would be 120/120 or 1

Ohms Law

I=E/R I(Current E=Voltage

If you are checking an electric part that has farads what part are you testing?

Capacitance

For a transformer to induce voltage from the primary to the secondary side what has to happen?

Current has to flow through the primary windings

What are some of the eight fundamentals?

Charge and Energyt

What is the atomic weight of an atom of copper?

29

What part of an atom is attached to the center of the nucleus?

Proton

Electron vs Proton

Electrons move around the outside, Proton is attached to the nucleus

What happens to the voltage attached to a load?

The voltage drops across the load

What are elements made from?

atoms. elements are composed of atoms

what is the smallest atom?

Hydrogen. Only has one proton and one electron. Doesn’t have a nucleus. Also the lightest

What is the law of charge?

positives and negatives attract

Which electronic label is correct?

Voltage is an E

What does it mean when an atom is unstable?

It has more or less electrons in orbit

Electromotive force is commonly measured in what?

Volts

What type of voltage does a battery produce?

DC