A 120-m long copper wire (resistivity 1.68 × 10-8 ? ? m) has resistance 6.0 ?. What is the diameter of the wire?
A) 0.0065 mm
B) 0.065 mm
C) 0.65 mm
D) 0.65 cm
E) 0.65 m
C
You might also like to view...
The impulse delivered to an object is equal to the change in the object's velocity
Indicate whether the statement is true or false
A soap bubble (n = 1.35) is floating in air. If the thickness of the bubble wall is 328 nm, which of the following wavelengths of visible light is strongly reflected?
a. 621 nm (orange) b. 547 nm (green) c. 590 nm (yellow) d. 707 nm (red) e. 429 nm (violet)
Which of the following forms of energy is the greatest for a system of a comet in orbit about the Sun during perihelion (the comet's closest approach to the Sun)
1.the total mechanical energy 2.the potential energy 3.the kinetic energy 4.none of these
Power: When a 14.0-A current flows through an 8.00-? device for 24.0 hours, how much does this cost if energy costs $0.0900 per kW ? h?
A. $0.24 B. $1.04 C. $2.16 D. $3.39