Lesson 8 — 5.3 Series and parallel

This lesson
  • Resistance, voltage & current — Parallel and series
  • Working on exercises.
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This lesson
  • Resistance, voltage & current — Parallel and series
  • Working on exercises.

Slide 1 - Diapositive

Resistance, voltage & current 

Series and parallel


Equivalent resistance

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Series circuit
parallel circuit
Total Resistance



Total current



Total voltage
Total Resistance



Total current



Total voltage

Rtot=R1+R2+R3+...
Utot=U1+U2+U3...
R1tot=R11+R12+R13+...
Utot=U1=U2=U3=...
Itot=I1+I2+I3=...
Itot=I1=I2=I3=...

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Exercise 1
a) What is the current flowing through the second, and third lamp?

b) If the resistance of each of each lamp is 18,5 Ω, and the resistance of each ammeter is 1 Ω. What would be the voltage over the circuit?

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Exercise 1
a) What is the voltage over each resistor?

b) What is the equivalent resistance to the three resistors in this circuit?

c) What is the current flowing through each resistor?

d) What is the total current flowing through this circuit?


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Exercise 3
Calculate the equivalent resistance of the circuit to the right.

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Next lesson
Studying for the test + Homework check

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Next lesson
Studying for the test + Homework check
  • - 5.1 Exercise 10, 11

  • 5.2 < Exercise 2, 4, 5, 6, 10
  • 5.2 > Exercise 2, 4, 5, 6, 10, 11

  • Worksheet:
  • < Part 2 Exercise 1 to 4 + 6 & 7
  • >Part 2 Exercise 1, 2, 5, 8 & 9
   
  • 5,3 Exercise 1, 2, 3 & 4
  • < Exercise 1, 2, 3, 4, 5, 7
  • > Exercise 3, 4, 7, 8, 9, 10

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