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
Bumek [7]
3 years ago
14

Resistance and resistivity are related by a:

Physics
1 answer:
kondor19780726 [428]3 years ago
4 0

Answer: D

Explanation: Resistance of current in a wire is directly proportional to the length of the wire and inversely proportional to the cross - sectional area of the wire. That is,

R = (rho × L)/A

Where

L = length of the wire

A = cross sectional Area of the wire

rho = resistivity = proportionality constant which depends on the quality of the wire.

Therefore, Resistance and resistivity are related by a:

proportionality constant dependent on the identity of the material.

You might be interested in
Menciona generaciones de particulas y explique cada una
Readme [11.4K]

ENGLISH:

It distinguishes between the fermions, which are particles of matter, and the bosons, which carry forces. The matter particles include six quarks and six leptons. The six quarks are called the up, down, charm, strange, top and bottom quark. ... All of these matter particles fall into three “generations.”

SPANISH:

Distingue entre los fermiones, que son partículas de materia, y los bosones, que transportan fuerzas. Las partículas de materia incluyen seis quarks y seis leptones. Los seis quarks se denominan quark arriba, abajo, encanto, extraño, superior e inferior. ... Todas estas partículas de materia se dividen en tres "generaciones".

3 0
3 years ago
Name the apparatus used to measure friction force? PLEASE HELP AS SOON AS POSSIBLE
melisa1 [442]
There is no apparatus for it. It is either use something like ruler and table and rub together or rub our hands, and friction force will be showed.
8 0
3 years ago
How do Ohm's Law relate current, voltage difference, and resistance?
Snowcat [4.5K]
The relationship between voltage, current, and resistance is described by Ohm's law. The equation, i = v/r, tells us that the current, i, flowing through a circuit is directly proportional to the voltage, v, and inversely proportional to the resistance, r.
6 0
3 years ago
Atoms that have become negatively charged by gaining extra electrons are called _____. anions anodes cations cathodes
nikklg [1K]
Anions: negatively charged atoms

Cations: positively charged atoms (CAT-ions are PAWS-itively charged)
Anode: positively charged electrode that allows electrical current flow (positive end of battery)
Cathode: negatively charged electrode that allows electrical current flow (negative end of batter)
5 0
3 years ago
Read 2 more answers
A child on a playground swing makes a complete to-and-fro swing each two seconds. The frequency of the swing is
klio [65]
Frequency=f
T=period of motion
f=1/T therefore f=1/2=0.500Hz or 0.5Hz

Hope this helps. Any questions please just ask. Thank you.
4 0
3 years ago
Other questions:
  • How are stars important to the Milky Way
    8·2 answers
  • A person on a roof throws one ball downward and an identical ball upward at the same speed. The ball thrown downward hits the gr
    7·1 answer
  • Which of these is an example of a mechanical wave? A. the light of the Sun B. a car stuck in traffic C. the shaking from an eart
    8·1 answer
  • Current is the movement of negative charges called protons.<br> A. True<br> B. False
    8·1 answer
  • What is the S.I unit of momentum
    5·2 answers
  • Which of the following water molecules exists in the greatest abundance?
    7·1 answer
  • A 1600 watt blow dryer is plugged into a source of 120 volts. What will the current through the blow dryer
    15·1 answer
  • Joules constant, 4.1868 J/cal, is an equivalence relation for 4.1868 Joules of work for 1 calorie of heat delivered to a substan
    11·1 answer
  • A 16.0 kg canoe moving to the left at 12.5 m/s makes an elastic head on collision with a 14.0 kg raft moving to the right at 16.
    15·1 answer
  • A 2.0-kg projectile is fired with initial velocity components v0x = 30 m/s and v0y = 40 m/s from a point on the Earth's surface.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!