1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alona [7]
3 years ago
13

Consider two copper wires of the same length. One has twice the cross-sectional area of the other. How do the resistances of the

se two wires compare? Consider two copper wires of the same length. One has twice the cross-sectional area of the other. How do the resistances of these two wires compare? Both wires have the same resistance. The thicker wire has twice the resistance of the shorter wire. The thicker wire has half the resistance of the shorter wire. none of the given answers
Physics
1 answer:
JulsSmile [24]3 years ago
6 0

Answer: a) when the cross section is doubled the resultant resistence  is a half. This means the thicker wire have half resistence than the thinner wire.

Explanation: In order to explain this behaviur we have to consider the expresion for the resistence which is given by:

R=\frac{\epsilon o  L}{A} where L and A are the length and the cross section for the wire, respectively.

From this expresssion we can conclude the above, this means

R=εo*L/A  if A is now 2A we have

R' = εo*L/2*A= R/2

You might be interested in
Hows does the world spin and we cant feel it
Debora [2.8K]
Because it spin so slow over the course of a whole day.
3 0
3 years ago
Read 2 more answers
What is the expermintal example of Zeeman effect?
Mrac [35]

Answer:

When the spectral lines are absorption lines, the effect is called inverse Zeeman effect.

6 0
3 years ago
What two major uses does this (H-R)diagram have for astronomers?
EastWind [94]
66666666666666666666666666666666666666666666666666666666666666666666666666666666666666

7 0
3 years ago
Help me with these simple nuclear energy reactions:
olasank [31]
I know what it is but its hard to see
8 0
4 years ago
Short essay Question
Reptile [31]
<h2>Hello! :)</h2>

Answer:

In wind turbines, the blades rotate due to the wind.

Explanation:

In wind turbines, the blades rotate due to the wind.<u> While the blade rotates the generator connected to it also rotates.</u> Thus the <u>kinetic energy from the wind initiates the electric generator which in turn produces the electricity.</u>

Thus the<u> kinetic energy of the wind is converted to electricity.</u>

<u></u>

Hope this helps!

Have a Wonderful Friday!

-Good Luck on your Homework- :)

6 0
2 years ago
Read 2 more answers
Other questions:
  • How codominant inheritance patterns differ from dominant/recessive inheritance patterns
    5·1 answer
  • Two circular disks each have 10 0s and 10th 1s spaced equally around their edges in different orders. Show that the disks can al
    7·1 answer
  • 14.
    6·2 answers
  • What occurs when light changes direction after colliding with particles of matter
    8·1 answer
  • Please help! Science and force stuff. (picture included)
    12·1 answer
  • Jack (mass 52.0 kg ) is sliding due east with speed 8.00 m/s on the surface of a frozen pond. he collides with jill (mass 49.0 k
    9·1 answer
  • if 6.75g of oxide of lead was reduced to 6.12g of metal, calculate the empirical formula of the oxide​
    5·1 answer
  • A tennis racket strikes a tennis ball with a force of 100 N. With what force
    15·1 answer
  • One method of getting a tight fit, say of a metal peg in a hole in a metal block, is to manufacture the peg slightly larger than
    13·1 answer
  • M A sinusoidal wave on a string is described by the wave function
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!