Which of the following statements are true? Check all that apply. A)The resistan

Question

Which of the following statements are true?

Check all that apply.

A)The resistance of a conductor is proportional to the resistivity of the material of which the conductor is composed.

B)Semiconductors have resistivity values that are larger than those of insulators.

C)The resistance of a conductor is proportional to the conductivity of the material of which the conductor is composed.

D)A material that obeys Ohm's law reasonably well is called an ohmic conductor or a linear conductor

E)Good conductors of electricity have larger conductivity values than insulators.

A)The resistance of a conductor is proportional to the resistivity of the material of which the conductor is composed.

B)Semiconductors have resistivity values that are larger than those of insulators.

C)The resistance of a conductor is proportional to the conductivity of the material of which the conductor is composed.

D)A material that obeys Ohm's law reasonably well is called an ohmic conductor or a linear conductor

E)Good conductors of electricity have larger conductivity values than insulators.

Explanation / Answer

A) R=resistivity*L/A, therefore A is True

B) Semiconductors have resistivity values that are less than those of insulators, therefore B is False

C) No, The resistance of a conductor is proportional to the resistivity of the material of which the conductor is composed, So False

D) Yes, A material that obeys Ohm's law reasonably well is called an ohmic conductor or a linear conductor, True

E) Good conductors of electricity have larger conductivity values than insulators, Its True all conductors have conductivity values larger than insulators not only good conductors but all conductors.

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