subject
Engineering, 17.10.2019 01:00 wendymtz2004

Consider two copper wires with the same cross-sectional area. wire a is twice as long as wire b. how do the resistivities and resistances of the two wires compare?

check all that apply.
a. wire b has twice the resistance of wire a. wire b has twice the resistivity of wire a.
b. wire a has twice the resistance of wire b. wire a and wire b have the same resistivity.
c. wire a and wire b have the same resistance.
d. wire a has twice the resistivity of wire b.

ansver
Answers: 2

Another question on Engineering

question
Engineering, 04.07.2019 03:10
What precautions should you take to prevent injuries when dealing with heavy loads?
Answers: 1
question
Engineering, 04.07.2019 18:10
Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.
Answers: 1
question
Engineering, 04.07.2019 18:10
Which of the following ziegler nichols tuning methods the response of the controller to a step input should exhibit an s-shaped curve? a)-open loop mode b)-closed loop mode c)-both modes (open & closed) d)-none of the modes (open & closed)
Answers: 3
question
Engineering, 04.07.2019 18:20
Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.
Answers: 1
You know the right answer?
Consider two copper wires with the same cross-sectional area. wire a is twice as long as wire b. how...
Questions
question
Mathematics, 10.09.2020 01:01
question
Social Studies, 10.09.2020 01:01
Questions on the website: 13722367