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)

Question

anonymous · Answer

You need to keep in mind that mA represents milliamperes, or one thousandth of an Ampere. Does that help?

anonymous · Answer

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.

anonymous · Answer

agh, maybe not ohms law, sorry it was my first thought and i just didnt edit it out when i worked it out.

anonymous · Answer

i'm confused with the units.... i know the one thousands of an amp. but it says multiple by 5.92 volts...

anonymous · Answer

how do i put it so where its watts. or W

anonymous · Answer

multiply the numbers then the units will follow. W/A * A makes the A go away. All you have left is W.

anonymous · Answer

One Volt multiplied by One Ampere is one Watt.

anonymous · Answer

so convert 2.66 mA to .00266a right? or no? and multiple that by 5.92 which would be .0157472?

anonymous · Answer

yes

anonymous · Answer

move the decimal point 3 places, so 2.66 milliAmperes is equal to 0.00266 Amperes.