Electricity- Resistance

Question 1

Resistance is measured in ____ (_)

Answer 1

Resistance is measured in Ohms (Ω)

Question 2

Higher resistance, lower _______, higher ___________.

Answer 2

Higher resistance, lower current, higher temperature.

Question 3

_____ __________ adds up in a series circuit, decreases in a parallel circuit.

Answer 3

Total resistance adds up in a series circuit, decreases in a parallel circuit.

Question 4

How do you calculate resistance?

Answer 4

Resistance (Ω) = potential difference (V) ÷ current (Amps)

Question 5

In a wire, as the current _________ so does the _______. Resistance is ____________.

Answer 5

In a wire the as the current increases so does the voltage. Resistance is proportional.

Question 6

In a filament bulb __________ increases if the temperature increases.

Answer 6

In a filament bulb resistance increases if the temperature increases.

Question 7

In a diode the forward resistance is ___ the backward resistance is ____.

Answer 7

In a diode the forward resistance is low the backward resistance is high.

Question 8

A thermistors resistance _________ if its temperature increases.

Answer 8

A thermistors resistance decreases if its temperature increases.