What must be the diameter of a cylindrical 120-m long metal wire if its resistance is to be 
? The resistivity of this metal is 1.68 × 10-8 Ω • m.
A) 0.065 mm
B) 0.65 mm
C) 0.65 cm
D) 0.325 mm
E) 0.0325 mm
Correct Answer:
Verified
Q34: Building codes usually limit the current carried
Q35: Nichrome wire,often used for heating elements,has resistivity
Q36: The resistivity of gold is 
Q37: A silver wire with resistivity
Q38: Calculate the current through a 10.0-m long
Q40: The emf and the internal resistance of
Q41: A 1500-W heater is connected to a
Q42: The voltage and power ratings of a
Q43: A 110-V hair dryer is rated at
Q44: The heater element of a particular 120-V
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents