Component Characteristics

Question 1

Characteristics of a Fixed resistor?

Answer 1

-Constant increase in current as potential difference increases.
-Directly proportional.
-Ohmic conductor (obeys ohms law).

Question 2

Characteristics of a Diode?

Answer 2

-Current only increases with potential difference in one direction.
-High resistance in negative direction = 0 current.
-Non-Ohmic (doesn’t obey ohms law)

Question 3

Characteristics of a Filament Lamp?

Answer 3

-Non constant increase in current as potential difference increases.
-Resistance increases (curve) due to increase in temperature.
-Non-ohmic (change in temp= change in resistance)