Electricity Circuit Question | Mathematics | Page 1

inner path Jan 1, 2024, 12:17 AM

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I'm not sure why my answer's wrong. I got 30 ohms, but the actual answer is 14 ohms. Is what I did fine?

honest portalBOT Jan 1, 2024, 12:17 AM

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subtle belfry Jan 1, 2024, 2:00 AM

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inner path I'm not sure why my answer's wrong. I got 30 ohms, but the actual answer is 14 o...

Why does your power supply have a resistance value? Do you mean that there's just a 30 ohm resistor in series with the positive terminal?

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OK I see what you are doing. Yes, the equivalent resistance is 30ohms if you just had a single resistor in parallel with the voltage source. You must have copied something down wrong or something like that.

inner path Jan 1, 2024, 2:47 AM

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oh i see

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so it’s fine right?

subtle belfry Jan 1, 2024, 6:41 PM

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inner path so it’s fine right?

For what you've drawn, the voltage source sees 30 ohms. You don't appear to have made a mistake. If the answer given is 14 ohms I would check if you've copied the right circuit.

inner path Jan 1, 2024, 7:10 PM

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yeah it might actually be a different circuit

#Electricity Circuit Question