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
san4es73 [151]
3 years ago
12

The resistance of a wire depends upon the material's resistivity and the length and cross‑sectional area of the wire. What will

happen to the resistance of a wire if its length is multiplied by 4?
Physics
1 answer:
andriy [413]3 years ago
6 0

Answer:

R' = 4R

The resistance will become 4 times the initial value.

Explanation:

The resistance of a wire at room temperature, is given by the following formula:

R = ρL/A   ----------- equation 1

where,

R = Resistance of wire

ρ = resistivity of the material

L = Length of wire

A = Cross-sectional area of wire

Now, if the length (L) is multiplied by 4, then resistance will become:

R' = ρ(4L)/A

R' = 4 (ρL/A)

using equation 1:

<u>R' = 4R</u>

<u>The resistance will become 4 times the initial value.</u>

You might be interested in
Select the correct answer.
soldi70 [24.7K]

Answer:

OD. The process of cutting down irrelevant information so only the information that is useful for particular purpose remains

6 0
3 years ago
Arunner starts from rest and accelerates uniformly to a speed of 8.0 meters per
VladimirAG [237]

Answer:

2.0 m/s/s

Explanation:

The acceleration of an object is the rate of change of velocity of the object.

Mathematically, it is given by:

a=\frac{v-u}{t}

where

u is the initial velocity

v is the final velocity

t is the time taken for the velocity to change from u to v

Acceleration is a vector, so it has both a magnitude and a direction.

For the runner in this problem, we have:

u = 0 is the initial velocity (he starts from rest)

v = 8.0 m/s is the final velocity

t = 4.0 s is the time taken

Substituting, we find

a=\frac{8.0-0}{4.0}=2.0 m/s^2

3 0
2 years ago
Periodic table of elements metals and nonmetals questions
bixtya [17]

Answer:

1 o b

2 c\

3 a

Explanation:

5 0
2 years ago
Read 2 more answers
The distance between two successive peaks on adjacent waves is its
yKpoI14uk [10]

Answer:

Wavelength

Explanation:

Wavelength is the distance between two corresponding consecutive phases of a waveform. It is usually represented by λ in the mathematical expressions.

A continuous propagating wave repeats its wavelength over the distance.

A wave has crest and trough with respect to time and space.

Wave is defined as a disturbance of any parameter repeated in a cyclic manner over the given time.

3 0
2 years ago
Which term could be used to explain why someone could safely sit on a hot wooden bench but not a hot metal bench? A. Radiation B
PilotLPTM [1.2K]
B. specific heat capacity 
hope this helps
5 0
3 years ago
Read 2 more answers
Other questions:
  • Two iron rods are placed horizontally, touching end-to-end. One end of one rod is heated. After some time, the other rod also fe
    11·2 answers
  • A physicist is calibrating a spectrometer that uses a diffraction grating to separate light in order of increasing wavelength (λ
    6·1 answer
  • What is the kinetic energy of a 26 kg eagle flying at an altitude of 65 m at a speed of 19 m/s?
    8·1 answer
  • The energy an object has as a result of it being in motion is called? What kind of energy?
    7·2 answers
  • How to divide electrons into energy levels?
    15·1 answer
  • How strongly the planet you're on pulls on you is your
    7·2 answers
  • While running, a person dissipates about 0.60 J of mechanical energy per step per kilogram of body mass. If a 61 kg person devel
    14·1 answer
  • As of December 31, 2013, Stand Still Industries had $2,500 of raw materialsinventory. At the beginning of 2013, there was $2,000
    12·1 answer
  • 11 cm/s2 is an example of<br> 30 m/s northwest is an example of
    6·1 answer
  • The pressure on 200 mL of a gas is reduced from 80 kPa to 40 kPa. The final volume is Page
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!