resistance Flashcards
what is resistance measured in?
Ohms (Ω)
what happens to current and temperature when higher resistance?
lower current, higher temperature
what is total resistance in a series and parallel circuit?
adds up in a series circuit, it decreases in a parallel circuit
resistance equation
Resistance (Ω) = potential difference (V) ÷ current (Amps)
what happens in a wire as current increases?
so does the voltage. Resistance is proportional
In a filament bulb, how does resistance increases?
if the temperature increases
in a diode, what is the resistance like?
the forward resistance is low the backward resistance is high
what happens as a thermistor resistance decreases?
if its temperature increases
how does an LDR resistance decrease?
if the light intensity on it increases
