Electricity Ch. 2

Question 1

Electric circuit consists of…

Answer 1

Power source, connecting wires/conductors, device that uses electrical energy/ load

Question 2

Device that uses energy is called?

Answer 2

The load

Question 3

Switch does what to the electric circuit?

Answer 3

Open and closes it

Question 4

EMF is measured in what?

Answer 4

Volts

Question 5

Polarity of voltage source determines direction of current flow and ?

Answer 5

The amount of voltage supplied by source

Question 6

Two factors that determine current flow in D-C current

Answer 6

Amount of voltage supplied by power source, and how well the load and wires conduct currents

Question 7

Ease with which a metal allows current to flow is?

Answer 7

Conductance

Question 8

Number of free electrons a material has depends on?

Answer 8

The resistance

Question 9

By choosing the proper metal for a conductor and making it with a certain cross-section and length

Answer 9

You can produce any kind of resistance affect you want

Question 10

The ____ a wire is the more resistances it has.

Answer 10

Longer