1. The problem statement, all variables and given/known data 2. Relevant equations 3. The attempt at a solution My thinking is that if the resistor's temp goes down then its resistance goes up. This means the current will bypass and ignore this resistor and the current around the circuit will stay the same? But this is wrong. The correct answer is: Resistance of parallel combination increases as temperature decreases Total resistance of circuit increases e.m.f./p.d. remains constant therefore current decreases What's incorrect in my knowledge?