6b

Question 1

Ohmic device

Answer 1

Electrical component with constant resistence for all voltages

Question 2

Resistance (electrical) v resistor

Answer 2

Measure of object opposition to the flow of electric current

Ohmic device with fixed resistance opposing flow of electric current causing voltage drop

Question 3

Electrical resistance

Answer 3

Lightbulbs and heaters are examples

Question 4

Ohms law

Answer 4

Relates voltage and current across electrical component to that components electrical resistance. Higher potential difference is higher current flow.
Describes electrodermal activity and skin conductance by applying voltage on skin to measure current detecting resistence. Used for psych and polygraph test as skin conductance is effected by emotional state.

Question 5

Ohmic and non Ohmic on graph

Answer 5

Linear and passes through origin
Non linear or doesn’t pass through origin