Multiple Choice
Five cylindrical wires are made of the same material.Their lengths and radii are
Wire 1: length radius r
Wire 2: lenth radius r/2
Wire 3: length radius r/2
Wire 4: length radius r/2
Wire 5: length radius r/2
Rank the wires according to their resistances, least to greatest.
A) 1, 2, 3, 4, 5
B) 5, 4, 3, 2, 1
C) 1 and 2 tie, then 5, 3, 4
D) 1, 3, 4, 2, 5
E) 1, 2, 4, 3, 5
Correct Answer:

Verified
Correct Answer:
Verified
Q6: A 60-watt light bulb carries a current
Q7: A current of 0.5 ampere exists in
Q8: An certain resistor dissipates 0.5 W when
Q9: For a cylindrical resistor made of ohmic
Q10: A current of 0.3 A is passed
Q11: If the potential difference across a resistor
Q12: For an ohmic substance, the electron drift
Q13: A cylindrical copper rod has resistance R.
Q14: Of the following the copper conductor that
Q15: For an ohmic substance, the resistivity depends