# lecture15 - DC Circuits DC es l s sistors S rie and paralle...

This preview shows pages 1–5. Sign up to view the full content.

DC Circuits DC Circuits Series and parallel rules for resistors Kirchhoff’s circuit rules

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
DC” Circuits DC” Circuits Direct Current or DC ”: current always flows in one direction. For circuits containing only resistors and emf’s the current is always constant in time. Circuits containing other elements such as capacitors and inductors as well as resistors will have currents that change with time. Alternating current or AC is current that reverses direction many times (eg: 60 Hz current in Canada) and will not be treated in this course
Resistors in Series Resistors in Series R 1 R 2 R 3 I 1 1 V IR = 2 2 V IR = 3 3 V IR = A B We want to replace this combination by a single resistor with resistance R eff A B R eff I

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Same current through all resistors Voltages add: V eff = V 1 + V 2 + V 3 + … IR eff = IR 1 + IR 2 + IR 3 + … (same current through all) ... 3
This is the end of the preview. Sign up to access the rest of the document.

### Page1 / 15

lecture15 - DC Circuits DC es l s sistors S rie and paralle...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online