Question

Which of the following statements about the electrical resistance R and electrical resistivity ρ is false, not true?

A. Electrical resistance of a conductor R is proportional to the
electrical resistivity ρ.

B.Electrical resistivity ρ of conductors decrease with increase of
temperature.

C.Electrical resistance R of a cylindrical conductor is inversely
proportional to the cross-sectional area of the conductor.

D.Electrical resistance of a conductor R arises from collisions of
the conduction electrons with the positive ion cores.

E.Electrical resistance R of a conductor increases with increase of
temperature.

Answer #1

---Where the R is the resistance, l is the length of the conductor, and a is the cross-sectional area of the conductor.

The false statements are B and E. ---> Electrical resistance R of a conductor increases with temperature. Since with increasing temperature the collision between the conduction electron and the positive ion core increases so the resistance also increases, does not decrease. The reasoning is the same for B also since R is proportional to .

Which of the fallowing statements about the electrical
resistance R and electrical resistivity ρ is
false, not tru?
A)
Electrical resistance R of a conductor increases with
increase of temperature.
B)
Electrical resistance R of a cylindrical conductor is
inversely ptoportional to the cros-sectional area of the
conductor.
C)
Electrical resistance of a conductor R arises from
collisions of the conduction electrons with the positive ion
cores.
D)
Electrical resistance of a conductor R is proportional
to the electrical resistivity...

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true false While maintaining a constant voltage
V, the current I increases when the
cross-sectional area A of a wire expands.
true false While maintaining a constant voltage
V, the current I increases when the resistivity ρ
of a wire decreases.
true false The resistivity ρ is proportional to
the resistance R of a wire.
Tries 0/2
Choose true or false for each statement regarding resistors in a
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(b) The above cable is used to transmit
electricity from a power station to an electrical substation 42.8
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b.If a data frame is fed into glm() using the
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