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6. Which equation isn't correct

  • R=resistivity/AL
  • resistivity=RA/L
  • conductivuty=GL/A
  • R=(resistivity)L/A
  • G=(conductivity)A/L

7. What is power?

  • The rate of flow of charged particles
  • The rate at which a component converts electrical energy into other engy types
  • The energy per unit charge

8. current entering a junction is...

  • smaller than the current exiting the junction
  • the same as the current exiting the junction
  • greater than the current exiting the junction

9. How do you calculate the total E.M.F in a series circuit?

  • E.M.F1+E.M.F2+E.M.F3....
  • 1/E.M.F1+1/E.M.F2+1/E.M.F3
  • totalE.M.F= E.M.F1=E.M.F2=E.M.F3

10. What type of wave can be polarised

  • transverse
  • longditudinal

11. What is potential difference?

  • The energy per unit charge
  • The rate of flow of charged particles
  • The rate at which a component converts electrical energy into other engy types

12. What isn't a potential divider equation?

  • V1/R2=V2/R1
  • V1/V2=R1/R2
  • V1/R1=V2/R2

13. What equation is incorrect?

  • V=E.M.F+v
  • V=E.M.F-Ir
  • E.M.F=V+v
  • E.M.F=I(R+r)

14. What is the equation for total resistance in series?

  • Rtotal=R1+R2+R3...
  • 1/Rtotal=1/R1+1/R2+1/R3...

15. what is the realtionship between conductance and resistance?

  • Same
  • Inverse
  • Proportional