dc circuits 🦸♂️ Flashcards
1
Q
define bypass
A
alternative path of low/no resistance for current to flow
2
Q
potential divider formula (for resistors in series)
A
V1 = (R1 / R1 + R2) x V
3
Q
current divider formula (for resistors in parallel)
A
I1 = (R2 / R1 + R2) x I
4
Q
how does a light dependent resistor differ based on light intensity?
A
when light intensity increases, resistance decreases and vice versa
5
Q
explanation when more light shines on the LDR
A
when more light shines on the LDR, resistance of LDR decreases. Effective resistance of the circuit decreases and a larger current is drawn from the battery. pd across a fixed resistor increases for the same resistance of fixed resistor
