Answered

At Westonci.ca, we connect you with the answers you need, thanks to our active and informed community. Get expert answers to your questions quickly and accurately from our dedicated community of professionals. Get detailed and accurate answers to your questions from a dedicated community of experts on our Q&A platform.

What is the current in the circuit if R1=7 R 2 =15, and the voltage is 220 volts?

Sagot :

AL2006
You haven't mentioned whether the resistors are in series or in parallel.
It's kind of important, and the answers are different.

If they're in series:
The total resistance is (R1 + R2) = (7 + 15) = 22 ohms
Current = (voltage) / (total resistance) = (220) / (22) = 10 Amperes

If they're in parallel:
The total resistance is (R1 · R2) / (R1 + R2) = (7 · 15) / (7 + 15) = 105/22 ohms
Current = voltage / total resistance = 220 · 22 / 105 = 46.1 Amperes.

The poor power supply could probably not deliver 46.1A for very long,
so I'm guessing that the resistors are in series, and the current is 10A.
Your visit means a lot to us. Don't hesitate to return for more reliable answers to any questions you may have. We appreciate your time. Please revisit us for more reliable answers to any questions you may have. We're here to help at Westonci.ca. Keep visiting for the best answers to your questions.