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
Alex787 [66]
2 years ago
11

Which of the following describes an electric current?

Physics
1 answer:
Sergio039 [100]2 years ago
7 0

Answer:

the flow of electrons through a circuit

You might be interested in
The name of a sedimentary rock is usually based on:
tigry1 [53]

Answer:

C

Explanation:

The name of the rock is usually derived from the sediment grain size.

4 0
3 years ago
The minimum energy needed to eject an electron from a sodium atom is 4.41 x 10-19 j. what is the maximum wavelength of light, in
Minchanka [31]
The energy of an electron as it is ejected from the atom can be calculated from the product of the Planck's constant and the frequency of the light energy. We can calculate the wavelength from the frequency we can calculate. We do as follows:

E = hv
 4.41 x 10-19  = 6.62607004 × 10<span>-34 (v)
v = 6.66x10^14 /s

wavelength = speed of light / frequency
</span>
wavelength = 3x10^8 / 6.66x10^14
wavelength = 4.51x10^-7 m = 450.75 nm
5 0
3 years ago
(Please explain why) A bar magnet is dipolar. This means is has ____ poles.
earnstyle [38]
Di = two, just like 'bi'. --take di-zygotic twins, or di-atomic + di-sulphide, etc.
5 0
3 years ago
Read 2 more answers
1-Calculate Req
ArbitrLikvidat [17]

Answer:

1. 21.66 Ohms

2.  3.38 A

3. 6.7 V

Explanation:

1. Req = 6+2 = 8 Ohms (2 and 6 are in a series circuit)

  Req = 1/8 +1/4 = 3/8 = 8/3 = 2.66 Ohms (8 and 4 are parallel, so we will add them using this equation)

  Req = 2.66 + 1 + 9 + 3 + 6 = 21.66 Ohms

2. I = V/R = 9/2.66 = 3.38 A (In a series circuit, the current is the same across the resistors, so we will add them and divided them by 9 volts)

3. V = IR = 3.38 x 2 = 6.7 V (In a series circuit, the voltage is different, so each resistor will have a different voltage.)

I hope this helps.  I am not an expert in physics but its ok :)

<u><em>Note: If the answer benefited u, mark me as the brainliest answer if u can, thx.</em></u>

3 0
2 years ago
Galilee said that if you rolled a ball along a level surface it would be
lana [24]
The answer would be stay because the surface is flat so it will stay!
3 0
3 years ago
Other questions:
  • What is the s. i unit of current​
    15·2 answers
  • Cumulus and cumulonimbus clouds are most likely to be formed by what
    11·2 answers
  • Blow up a balloon and rub it against your shirt a number of times. In doing so you give the balloon a net electric charge. Now t
    10·1 answer
  • A train travels with a constant speed of 20.0m/s for 7.00s. Determine all
    8·1 answer
  • Anthony and maylnn are watching a football game
    9·2 answers
  • Shani poses as the statue of liberty for an art class. she holds a torch above her head with her right hand and a book against h
    15·1 answer
  • Which graph shows the fastest speed?
    9·1 answer
  • At what efficiency is a photovoltaic array running if insolation on the collector is 650 W/m2, the total collector area is 10 m2
    15·1 answer
  • One person holds a spring scale while another pulls until the scale reads 32 N. What is the force that the person holding the
    7·1 answer
  • What us the motion? and what type of force did it experienced​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!