Physics II I- Electrical Resistivity

Physics II I- Electrical Resistivity

Category:

Education

Tags:

• Physics
• Olympic
• College
• Bob
• Abel
• Bremerton
• Kitsap
• WA

[kakkannon]

converting the units to the SI before calculating

i got

[(2.44x10^-6)x10] / [pi((5x10^-4)^2)] = 31.06ohms

have i done something wrong?

everything is in meters

[OlympicCollege]

The resistivity would have to be converted to 2.44x10^-8 ohms-meters; right now it's in ohms-cm. Then you'd get the 0.31 ohms we got in the video. - bob

[1995a1995z]

? 0:16

[IKILLYOUWITHMYMIND]

Just being careful: about the copyright thing, am I allowed to refer to this as a source in my A-level (English equivalent of high school) physics coursework? I don't really want to incur the wrath of the FBI.

[message2blackwomen]

I thought the area was done in CM circular mils instead of cm centimeters

[x69Crunchyx]

Keira Knightly?

[W3ZTL3Y]

@hottiepants87 no because the number x10^-6 is first multiplied by 1000 (which is x10^3) which takes the power to -3. Then its divided by a number x10^-3, giving the answer without a power.

lol sorry for proving u wrong a whole year later. im now revising for my physics A Level.

And thanks Dr. Abel for the video, it helps.

[adamkazmi]

Thanks a lot Dr. You are great teacher.

[rcabbage789]

thanks man!

[alphadot]

you made it nice and clear

thank you