An 18 Ω, 9 Ω, and 6 Ω resistor are connected in parallel to an emf source. A current of 4 A is the 9 Ω resistor. How do you calculate the resistance of the circuit? What is the potential difference across the source?
How do you calculate the current in each resistor?
How do you calculate the current in each resistor?
1 Answer
Mar 1, 2017
Since they are parallel, the voltage is the same for all resistors.
Explanation:
Second question:
First question:
You could use
Or:
You can calculate the currents through the other resistors, add them all up and recalculate the total resistance (voltage already calculated):
Now