Presentation on theme: "Concept Summary Batesville High School Physics. Circuit Schematics A schematic diagram is a symbolic representation of a circuit. A symbol represents."— Presentation transcript:
Three Types of Circuits Series Parallel Compound
Series Circuits Series circuits have 1 path for charges to flow.
Series Circuits Voltage may be different across different objects in a series circuit. Sum of the individual voltages = source voltage Current is the same in all parts of a series circuit. If one “goes out”, they all “go out”
Parallel Circuits A parallel circuit has two or more paths for charges to move.
Parallel Circuits Voltage is the same across each element in a parallel circuit. Current may vary through different elements in a parallel circuit. Sum of the individual currents = source current. If one “goes out”, the other “stays lit”.
Compound Circuits A compound circuit has both series and parallel parts.
Adding Resistance in Series When you add resistance in series: Total resistance increases Current decreases
Equivalent Series Circuits R series = R1 + R2
Adding Resistance in Parallel When you add resistance in parallel: Total resistance decreases Current increases
Household Circuits Household circuits are: parallel circuits Typically designed to carry 15 Amperes of current - maximum.
Overloading Circuits Since adding resistance to a parallel circuit causes current to increase, adding appliances to a household circuit causes current in the house wiring to increase. This means wires must dissipate more heat energy (P = I 2 R).
Short Circuits A short circuit is a very low resistance path in a circuit. A short circuit will also cause large amounts of current to flow in a circuit and overload the circuit.
Fuses & Circuit Breakers Fuses and circuit breakers act as automatic switches in a circuit to prevent dangerous currents from flowing.