Mark Lloyd wrote in news:a7m3z.9628$ snipped-for-privacy@fx02.iad:
That is incorrect. Resistance is any finite number: e.g. 5 ohms * 0 amps = 0 volts. The one thing R *cannot* be is infinite.
No it did not.
And yours is one of them.
That's because: (a) you did a mathematically undefined operation (division by zero), and (b) your calculator is constructed incorrectly, and giving you the wrong answer. The display
*should* have showed "undefined". *My* calculator does it right. Pressing the same sequence of keys gives this result: ERR:DIVIDE BY 0My wife's calculator also does it right, with the result -E-, same as it gives for the square root of a negative number, logarithm of a nonpositive number, inverse sine of 2, etc.