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
sertanlavr [38]
3 years ago
5

How does a change in resistance affect the conductivity of a material?

Physics
2 answers:
Alenkasestr [34]3 years ago
5 0

Answer:

b

Explanation:

i took the test

max2010maxim [7]3 years ago
4 0

Answer: the answer is B the lower the resistance,the higher the conductivity

Explanation:

Resistance is inversely proportional to conductivity,the lower the resistance the higher the conductivity,the metal silver has a very low resistance,thus it conductivity is high

You might be interested in
Ccording to coulomb's law, which pair of charged particles has the lowest potential energy? according to coulomb's law, which pa
Sladkaya [172]

Coulombs law says that the force between any two charges depends on the amount of charges and distance between them. This force is directly proportional to the magnitude of the two charges and inversely proportional to the distance between them.

F=k\frac{|q_1| |q_2|}{r^2}

where q_1\hspace{1mm}and\hspace{1mm}q_2 are charges, r is the distance between them and k is the coulomb constant.

case 1:

q_1=-e\\ q_2=+3e\\ r=100pm\\ \Rightarrow F=k\frac{|-e||3e|}{(100pm)^2}=3ke^2\times10^8

case 2

q_1=-e\\ q_2=+2e\\ r=100pm\\ \Rightarrow F=k\frac{|-e||2e|}{(100pm)^2}=2ke^2\times10^8

case 3:

q_1=-e\\ q_2=+e\\ r=100pm\\ \Rightarrow F=k\frac{|-e||e|}{(200pm)^2}=0.25ke^2\times10^8

Comparing the 3 cases:

The maximum potential force according to coulombs law is between -1 charge and +3 charge separated by a distance of 100 pm.

3 0
3 years ago
Read 2 more answers
Explain, briefly, what the electrical field inside a microwave oven does to heat food.
yarga [219]

Answer:

Inside the strong metal box, there is a microwave generator called a magnetron. When you start cooking, the magnetron takes electricity from the power outlet and converts it into high-powered, 12cm (4.7 inch) radio waves. Thus the microwaves pass their energy onto the molecules in the food, rapidly heating it up.May 3, 2018

5 0
3 years ago
When a person's temperature reaches 104 degrees, the chances of survival are decreased dramatically. Group of answer choices Tru
Natali5045456 [20]

Answer:

True

Explanation:

With the increase in temperature hypothalamus fails and heatstroke occurs due to this failure. Hypothalamus is the region of our brain that act as a thermostat. It co-ordinates our physiological response to excessive heat. When the person’s temperature reaches to 104 degrees then it causes heatstroke. This heatstroke is very sudden and can kill person. Hence, we can conclude that when person’s temperature reaches to 104 degrees chances of survival decreases dramatically.

8 0
3 years ago
A busy chipmunk runs back and forth along a straight line of acorns that has been set out between his burrow and a nearby tree.
saveliy_v [14]

Answer: a = 1.32m/s2

Therefore, the average acceleration is 1.32m/s2

Explanation:

Acceleration is the rate of change in the velocity per time

a = change in velocity/time

a = ∆v/t

average acceleration a = (v2 -v1)/t. ....1

Given;

Final velocity v2 = 1.63m/s

Initial velocity v1 = -1.15ms

time taken t = 2.11s

Substituting into eqn 1

a = [1.63 - (-1.15)]/2.11

a = (1.63+1.15)/2.11

a = 2.78/2.11

a = 1.32m/s2

Therefore, the average acceleration is 1.32m/s2

6 0
4 years ago
How fr do you think you would go on a car while sneezing for 2.5 seconds ?
arsen [322]

depends on the speed limit

4 0
3 years ago
Read 2 more answers
Other questions:
  • The amount of water in reservoirs is often measured in acre-ft. one acre-ft is a volume that covers an area of one acre to a dep
    9·2 answers
  • A piston-cylinder assembly contains air at a pressure of 30 lbf/in2 and a volume of 0.75 ft3. The air is heated at constant pres
    15·1 answer
  • The law of reflection is quite useful for mirrors and other flat, shiny surfaces. (This sort of reflection is called specular re
    8·1 answer
  • Which renewable resource could become a nonrenewable resource if used faster than Earth's ability to replenish its supply? A. wa
    15·2 answers
  • IT FOR 22 PTS The______of a wave is the number of wavelengths that pass a fixed point in a second.
    9·1 answer
  • When a wave propagates through a medium the molecules of the medium?
    15·1 answer
  • Which of the following are clues that a chemical reaction may have taken place?
    11·2 answers
  • A bullet of mass 50 g travelling with a speed of 15ms penetrates into a
    7·1 answer
  • Help me!
    5·2 answers
  • ) The radius of sphere measured repeated values 5.63 m, 5.54 m and 5.53 m. Determine the most
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!