Resistors of 12 Ω, 24 Ω and 24 Ω are in parallel across a 6 V battery…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
Resistors of , and are in parallel across a battery. Find the combined resistance and the total current.
Need a reminder? The key ideaShow
In parallel, every branch has the same potential difference, the currents add up, and ; for two, . Homes are wired in parallel.
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. The combination. , so .
Step 2. The current. .
Answer: and .
Check. Branch by branch: .
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