this question i don't understand either arghh... Determine the result of multiplying 2.66 mA by 5.92 V (the unit for the answer is W)
You need to keep in mind that mA represents milliamperes, or one thousandth of an Ampere. Does that help?
isnt that ohms law? 2.66 mA is (2.66 X 10^-3 A), so just multiply that by the 5.92V and do dimensional analysis to convert the units. One volt is W/A and watts are J/s. If you multiply an ampere times a volt, the ampere will cancel and leave you with watts.
agh, maybe not ohms law, sorry it was my first thought and i just didnt edit it out when i worked it out.
i'm confused with the units.... i know the one thousands of an amp. but it says multiple by 5.92 volts...
how do i put it so where its watts. or W
multiply the numbers then the units will follow. W/A * A makes the A go away. All you have left is W.
One Volt multiplied by One Ampere is one Watt.
so convert 2.66 mA to .00266a right? or no? and multiple that by 5.92 which would be .0157472?
yes
move the decimal point 3 places, so 2.66 milliAmperes is equal to 0.00266 Amperes.
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