Lesson: Parallel Circuits
In this lesson, we will learn how to calculate the potential difference, current, and resistance at different points within simple parallel circuits.
Sample Question Videos
Worksheet: 13 Questions • 5 Videos
The diagram shows four circuits with components connected in parallel. Which two circuits are equivalent?
Elizabeth sets up the circuit shown in the diagram. The current through the first ammeter, , is 5 A. What is the value of ? Give your answer to 1 decimal place.
The value of is initially 3 A. What is the value of ?
If is then closed, what happens to the value of ?
With still closed, is the resistance of the circuit lower than, higher than, or the same as it was when was open?
and are kept closed, but is opened. Does the resistance in the circuit increase, decrease, or stay the same?