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
topjm [15]
3 years ago
15

Why electrons flow in a wire when connected to a battery?

Physics
1 answer:
vesna_86 [32]3 years ago
6 0

Answer:

The metal atoms in the wire can't move, but their outer electrons can. The force pushes those electrons and they move to further parts of the wire, trying to reach the other end. As the electrons move away, new electrons flow into the wire through the battery to take their place.

Explanation:

You might be interested in
When a scientist contrasts two or more objects what is he or she looking for?
tekilochka [14]
When your Contrasting multiple objects, your looking for any differences that may or may not be their. Think Compare and Contrast if that helps, The answer to this is A
5 0
3 years ago
Read 2 more answers
The length of a certain wire is kept same while its radius is doubled. what is the new resistivity of this wire?
anastassius [24]
The text does not specify whether the resistance R of the wire must be kept the same or not: here I assume R must be kept the same.

The relationship between the resistance and the resistivity of a wire is
\rho =  \frac{AR}{L}
where
\rho is the resistivity
A is the cross-sectional area
R is the resistance
L is the wire length

the cross-sectional area is given by
A=\pi r^2
where r is the radius of the wire. Substituting in the previous equation ,we find
\rho =  \frac{\pi r^2 R}{L}

For the new wire, the length L is kept the same (L'=L) while the radius is doubled (r'=2r), so the new resistivity is
\rho' =  \frac{\pi r'^2 R}{L'}= \frac{\pi (2r)^2 R}{L}=4  \frac{\pi r^2 R}{L}   = 4 \rho
Therefore, the new resistivity must be 4 times the original one.
5 0
3 years ago
Read 2 more answers
if heat energy is transferred from direct contact between a warm and a cold object it has been transferred by what ?
Katarina [22]

When heat energy is transferred from direct contact between a warm and a cold object , it is known as heat transfer by conduction.

In conduction, the heat transfer takes place within an object or between two objects in contact until the temperature becomes uniform. this kind of heat transfer continues until the temperature at two ends between which the heat transfer take place , becomes equal.  Heat transfer takes place from point at high temperature to point at lower temperature.

5 0
3 years ago
A person has a gravitational force (weight) of 600 N on Earth. Suppose the mass of the Earth is double and the radius shrinks to
Alenkasestr [34]

Explanation:

that's impossible,the radius of the earth can't decrease when the mass doubles!

4 0
3 years ago
The process of a liquid becoming a gas is call what
Sergio039 [100]
Vaporization of a sample of liquid is a phase transition from the liquid phase to the gas phase.

6 0
3 years ago
Other questions:
  • A ______is any push or pull in a direction
    10·1 answer
  • Which of these is the best explanation for why 2 negatively charged balloons if put close repel
    13·1 answer
  • A string of mass m and length L is under tension T. The speed of a wave in the string is v. What will be the speed of a wave in
    15·1 answer
  • Two equal-mass stars maintain a constant distance apart of 8.0 x 1010 m and rotate about a point midway between them at a rate o
    15·1 answer
  • A liquid of density 830 kg/m3 flows through a horizontal pipe that has a cross-sectional area of 1.20 x 10-2 m2 in region A and
    10·1 answer
  • Which of the following is not a compound <br> A. Gold <br> B. Water<br> C. Salt<br> D. Sugar
    13·1 answer
  • We cannot work without food why​
    14·1 answer
  • Which of the following was an effect of the French Revolution?
    6·1 answer
  • What is one disadvantage of sending information over long distances
    8·2 answers
  • Give an example of a force applied to an object that does not change the object's velocity. Why does the object's velocity not c
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!