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
Novay_Z [31]
3 years ago
14

Describe Ohm's law and its limitations;

Physics
1 answer:
siniylev [52]3 years ago
5 0
<span>The Ohm's Law is a powerful and simple tool to analyze electric circuits. It shows the relationship between voltage (V) and current (I) in a conductor. But, in order to properly apply to circuits (real circuits), its limitations must be understood.   Most conductors, resistance is greatly unaffected by current or voltage (resistance is stable property).
Limitation: this law does not apply to rectifiers or semiconductors or to the conduction of electricity through gases.</span>
Formula: current (I) is equal to voltage (V) over resistance (R)


You might be interested in
Swinging a golf club toward a golf<br> ball and hitting it off the tee.
Vlad1618 [11]

Answer:

sucks cocka-doodle-doooooooo

Explanation:

he likes it jsjsjsjsjsjsjjjsnsns

7 0
2 years ago
Read 2 more answers
Quinn accelerates her skateboard along a straight path from 0 m/s to 4.0 m/s
umka2103 [35]
  • initial velocity=u=0m/s
  • Final velocity=v=4m/s
  • Time=t=2.5s

\\ \sf\longmapsto Acceleration=\dfrac{v-u}{t}

\\ \sf\longmapsto Acceleration=\dfrac{4-0}{2.5}

\\ \sf\longmapsto Acceleration=\dfrac{4}{2.5}

\\ \sf\longmapsto Acceleration=1.6m/s^2

8 0
2 years ago
A 2430 pound roller coaster starts from rest and is launched such that it crests a 105 ft high hill with a speed of 59 mph. The
Rudik [331]

Answer:

Explanation:

Given

Weight of roller coaster is W=2430\ pound

mass of roller coaster m=\frac{W}{g}=\frac{2430}{32.2}=75.45

Distance traveled by roller coaster d=396\ ft

drag force f_d=85\ pounds

velocity at top v=59 mph\approx 86.53\ ft/s

Suppose E is the initial energy

Conserving Energy at bottom and top

E=\frac{1}{2}mv^2+mgh+f_d\cdot d

E=0.5\times 75.45\times 86.53^2+2430\times 105+85\times 396

E=2.9\times 10^5\ foot-pound

5 0
3 years ago
Air "breaks down" when the electric field strength reaches 3×106n/c, causing a spark. a parallel-plate capacitor is made from tw
aalyn [17]
Ok, I think this is right but I am not sure:
 Q = ϵ
 0AE
A= π π
 r^2

=(8.85x10^-12 C^2/Nm^2)
( π π (0.02m)^2)
(3x10^6 N/C) =3.3x10^-8 C = 33nC N = Q/e = (3.3x10^-8 C)/(1.60x10^-19 C/electron) = 2.1x10^11 electrons


4 0
3 years ago
What is the kinetic energy of a jogger with a mass of 65 kg traveling at a velocity of 2.5 m/s?
scZoUnD [109]
KE=203.125 J !!!!!!!!!
7 0
3 years ago
Read 2 more answers
Other questions:
  • A 0.280 m radius, 475 turn coil is rotated one-fourth of a revolution in 4.17 ms, originally having its plane perpendicular to a
    9·1 answer
  • A fisherman is fishing from a bridge and is using a "40.0-N test line." In other words, the line will sustain a maximum force of
    15·1 answer
  • A whistle of frequency 592 Hz moves in a circle of radius 64.7 cm at an angular speed of 13.8 rad/s. What are (a) the lowest and
    13·1 answer
  • The Earth revolves around the Sun once a year at an average distance of 1.50×1011m. Find the orbital radius that corresponds to
    5·1 answer
  • During a race the dirt bike was observed to leap up off the small hill at A at an angle of 60^o with the horizontal. If the poin
    8·1 answer
  • What is drag? In what situations might it act on the force of gravity?
    9·2 answers
  • A hockey puck is set in motion across a frozen pond. If ice friction and air resistance are neglected, the forcerequired to keep
    11·1 answer
  • How is an earthquake's origin and intensity identified?
    15·1 answer
  • When applied behavior analysis is used properly what happens???​
    11·1 answer
  • Lauren pushed a book off the edge of a table. Which energy change occurs as the book falls from the table?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!