What is the PD of a circuit which has a 40 mA current and a 1 kilohm resistance?
- 40 V.
- 400 V.
- 4 V.
Explanation
Potential difference is found from Ohm's law: V = I x R = 0.040 A x 1000 ohms = 40 V. The conversions of 40 mA to 0.04 A and 1 kilohm to 1000 ohms are what make the figures combine cleanly.
kosala asking:
What is the PD of a circuit which has a 40 mA current and a 1 kilohm resistancese
Community Comments (1)
D
dimky Posts: 514 01.01.2012 / 20:08
Hello.
V = I x R
V = I x R
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