When a thin copper wire that is 178 m long is connected between a 1.2-V potential difference,the current through the wire is 2.0 amps.What is the diameter of this wire? The resistivity of copper is 1.72 × 10-8 Ω ∙ m.
Correct Answer:
Verified
Q82: A 12-V battery is connected across a
Q83: A 1.0-m length of nichrome wire has
Q86: A 1.0-mm diameter extension cord is made
Q87: A certain metal has a resistivity of
Q91: An instrument is rated at 250 W
Q95: A certain metal wire has a cross-sectional
Q100: A 120-m long metal wire having a
Q102: A 100-W resistance heater is connected to
Q103: A tube of mercury with resistivity 9.84
Q109: A resistance heater is rated at 1200
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