Physics - LDR CircuitWatch
It said during light conditions, the LDR has low resistance and current runs through it.
My question is, if something has a resistance of 0 (I know this isn't possible but for the sake of argument) will it take all of the current so the other components are left with no current?
No, all components would have a current flowing through as otherwise the circuit would not work. It is also dependent on which type of circuit it is in. In series ciruit, the current is the same on any component so it would not vary unless it is in a parallel circuit in which the current through each component adds up to the toal current. Hope this helped!
The current from the bulb (A2) + the current from the LDR (A1) would equal the current from the battery (A). A = A1 + A2. Your question, if there was 0 resistance, would it affect the other components - no as there's 0 resistance meaning very high and surging current which would flow through all the components.