Equivalent resistance for resistors in parallel:
For 2 resistors in parallel:
Equivalent resistance for resistors in series:
Power in a circuit:
Label the resistors as below:
R4 and R5 are in parallel:
R45 = (20.0)(20.0)/(20.0 + 20.0) = 10.0Ω
R45 and R3 are in series:
R345 = 10.0 + 10.0 = 20.0Ω
In the circuit shown in the figure, all the resistors are rated at a maximum power of 1.20 W.
What is the maximum emf that the battery can have without burning up any of the resistors?
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Combining Resistors in Series & Parallel concept. You can view video lessons to learn Combining Resistors in Series & Parallel. Or if you need more Combining Resistors in Series & Parallel practice, you can also practice Combining Resistors in Series & Parallel practice problems.
What professor is this problem relevant for?
Based on our data, we think this problem is relevant for Professor Backus' class at SUNY College of Technology at Delhi.