Other questions in this quiz

2. What are the units for resistivity?

  • Ohm metre
  • Ohm metre^-2
  • Ohms
  • Ohm metre^2

3. What are the units for Voltage?

  • Cs^-1
  • JC^-1
  • kgm^-1
  • VA^-1

4. Hooke's Law states Force is proportional to WHAT?

  • Length (l)
  • Extention (e)
  • Mass (m)
  • Stress (σ)

5. What is the equation used to work out resistivity?

  • p= GL / A
  • p= RA / L
  • p= AL / R
  • p= RL / A
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Comments

GoodTimes.

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Good quiz, but on Q2, the unit of resisitivity isn't Ohm metre^-1.

Former Member

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I thought for question 3, the charge carriers in semi-conductors could be either electrons or 'gaps' depending on which element they were doped with? Good quiz though - made me think! :)

HAHA

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GoodTimes. wrote:

Good quiz, but on Q2, the unit of resisitivity isn't Ohm metre^-1.

actually it's ohm meter because 

p=RA/l and the unit for these are R= ohm A= m^2 and length = m

the equation in unit form looks like this ohmm^2/m 

the m gets cancelled out leaving only one m (from the area) 

p=ohmm

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