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Help on Ohms Law Calculations |  |
| Ohm's Law is the formal statement of what every electronics technician and electrician knows in their heart to be irrevocably true: that is, that the current in a circuit goes up with the increase of applied voltage, and goes down with increase of circuit resistance.
There is also an ancilliary equation, which is merely the definition of power: the power in watts is equal to the product of voltage in volts and current in amps. With these two equations and four variables, if any two variables are defined, the remaining two can be calculated. The multipliers available for the input of known values range from µ to M ... that is from micro- through milli- and Kilo- to Mega-. It is not compulsory to use the available multipliers correctly, eg 0.5V or 500mV are both acceptable. The default muliplier is 1; that is, no multiplier at all. For your convenience, answers are shown in standard engineering multipliers ranging from one pico-unit (10^-12) to one Tera-unit (10^+12). Results outside this range will not be shown! Sample calculation: 1V applied to 1K | ||
produces 1mA and 1mW
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