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
bija089 [108]
3 years ago
13

Find the resistance of wire of0.65m Radius 0.25andresistivity 3x10-6 OHM​

Physics
1 answer:
densk [106]3 years ago
5 0

Complete Question:

Find the resistance of a wire of length 0.65 m, radius 0.25 mm and resistivity 3 * 10^{-6} ohm-metre.

Answer:

Resistance = 9.95 Ohms

Explanation:

<u>Given the following data;</u>

Length = 0.65 m

Radius = 0.25 mm to meters = 0.00025 m

Resistivity = 3 * 10^{-6} ohm-metre.

To find the resistance of the wire;

Mathematically, resistance is given by the formula;

Resistance = P \frac {L}{A}

Where;

  • P is the resistivity of the material.
  • L is the length of the material.
  • A is the cross-sectional area of the material.

First of all, we would find the cross-sectional area of the wire.

Area of circle = πr²

Substituting into the equation, we have;

Area  = 3.142 * (0.00025)²

Area = 3.142 * 6.25 * 10^{-8}

Area = 1.96 * 10^{-7} m²

Now, to find the resistance of the wire;

Resistance = 3 * 10^{-6} * \frac {0.65}{1.96 * 10^{-7}}

Resistance = 3 * 10^{-6} * 3316326.531

<em>Resistance = 9.95 Ohms </em>

You might be interested in
Ordinary ocean waves are created by the interaction of the ____ and ____.
dmitriy555 [2]
Wind and amplitude creates the waves in an ordinary ocean
7 0
3 years ago
Glycerin at a temperature of 30 degrees celcius flows at a rate of 8×10−6m3/sthrougha horizontal tube with a 30mmdiameter. what
marusya05 [52]

The pressure drop in pascal is 3.824*10^4 Pascals.

To find the answer, we need to know about the Poiseuille's formula.

<h3>How to find the pressure drop in pascal?</h3>
  • We have the Poiseuille's formula,

                     Q=\frac{\pi r^4P}{8\beta l}

  • where, Q is the rate of flow, P is the pressure drop, r is the radius of the pipe, is the coefficient of viscosity (0.95Pas-s for Glycerin) and l being the length of the tube.
  • By substituting values and rearranging we will get the pressure drop as,

                  P=3.284Pascals

Thus, we can conclude that, the pressure drop in pascal is 3.824*10^4.

Learn more about the Poiseuille's formula here:

brainly.com/question/13180459

#SPJ4

3 0
1 year ago
What is an atomic theory?
seraphim [82]

Answer: the theory that all matter is made up of tiny indivisible particles (atoms). According to the modern version, the atoms of each element are effectively identical, but differ from those of other elements, and unite to form compounds in fixed proportions.

8 0
3 years ago
Read 2 more answers
What are the 4 energy transformations of a dash toy
Hunter-Best [27]

Answer:

Thermal/Heat energy, kinetic energy, light energy, & Electromagnetic  energy

3 0
3 years ago
PLS HELP WILL MARK AS BRAINLIEST ANSWER
Reika [66]

Answer:

1 point?

Explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Which car has the most kinetic energy? A car of mass 1500 kg with speed 5 m/s or A car of mass 1300 kg with speed 3 m/s or a car
    5·2 answers
  • Melting, freezing, and boiling are______ changes
    15·2 answers
  • 1. in which lover of Earth are temperature and<br> pressure greatest?<br> 1-A<br> B <br> C <br> D
    11·1 answer
  • What method of heat transfer does heat energy use to reach earth from the sun?
    14·2 answers
  • A human hair is approximately 56 µm in diameter.
    14·1 answer
  • Consider two rocks with masses of 1 and 10 kilograms. What is the relation between their inertias? Between their masses? Between
    11·1 answer
  • Mrs. Buckley asked her physical science class to look at the graph and tell which of the following explanations are most likely
    14·2 answers
  • A fly is call inside a car that is moving in the positive direction with constant velocity. The fly flies with a constant veloci
    15·1 answer
  • 8. An object has a force applied. The object has a mass of 36 Kg and accelerates at 3.4 m/sec2. What is the force acting on the
    10·1 answer
  • A single light beam is split into two equal beams, denoted a and b. beam a travels through a medium with a higher index of refra
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!