Series circuit
- 1. Series CircuitsSeries Circuits This presentation is designed to give you a broad sense of series circuits
- 2. Learning Objectives- UponLearning Objectives- Upon completion of this lesson…completion of this lesson… Students will know what a series circuit looks like Students will know the relationships of voltage, current and resistance in a series circuit Students will know how to compute the missing variable given the other two in regards to a series circuit
- 3. DefinitionDefinition A circuit with only one path through all of the resistors
- 6. R=ResistanceR=Resistance Rt = R1 + R2 + R3 Rt = 8Ω + 16Ω + 24Ω Rt = 48Ω The total resistance of a series circuit is the sum of the individual resistances
- 8. I=CurrentI=Current It = I1 = I2 = I3 It = Vt/ Rt It = 120 V/ 48Ω It = 2.5 Amps The total current of a circuit is calculated using the total resistance and the total voltage Current is constant throughout the circuit
- 9. Voltage DropVoltage Drop As the voltage goes through a resistor the voltage leaving the resistor is smaller than the voltage entering. The amount of the voltage drop is dependent on the value of the resistor
- 10. V=VoltageV=Voltage Vt = V1 + V2 + V3 V1 = I1 x R1 V2 = I2 x R2 V3 = I3 x R3 The total voltage of a series circuit is the sum of the individual voltage drops
- 11. V=VoltageV=Voltage V1 = I1 x R1 – V1 = 2.5 amps x 8Ω – V1 = 20 Volts V2 = I2 x R2 – V2 = 2.5 amps x 16Ω – V2 = 40 Volts V3 = I3 x R3 – V2 = 2.5 amps x 24Ω – V3 = 60 Volts
- 12. V=VoltageV=Voltage Vt = V1 + V2 + V3 Vt = 20V + 40V + 60V Vt = 120V
- 13. Series Circuit RecapSeries Circuit Recap Electricity must flow through all resistors in order to complete the circuit If a resistor is broken then the circuit cannot be completed and all aspects will not work
- 14. Series Circuit RecapSeries Circuit Recap Vt = Rt x It Vt = V1 + V2 + V3 Rt = R1 + R2 + R3 It = I1 = I2 = I3
- 15. Practice:Practice: Vt V1 V2 V3 Rt R1 12 Ω R1 8 Ω R1 5 Ω It 2 Amps I1 I2 I3