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
Goshia [24]
3 years ago
7

If 3.2*10^20 electrons pass through a wire in 4s, what would be the electrical current in the wire?

Physics
1 answer:
rewona [7]3 years ago
4 0

Answer: 12.8 A

Explanation:

Current is defined as the rate of flow of electric charge based on the formula:

I(current) = deltaQ(change in charge)/deltat(change in time).

First, however, we must convert the number of electrons into the number of coulombs. Based on the fact that the charge of 1 electron or 1 elementary charge is equal to 1.6*10^-19 C, we can calculate:

3.2*10^20 e = 1.6*10^-19*3*10^20 C = 51.2 C.

Now we use: I = Q/t = 51.2/4 = 12.8 A.

Hope this helped.

You might be interested in
An object is propelled along a straight-line path by a force. If the net force were doubled, the object's acceleration would be_
nikdorinn [45]

Answer:

double

Explanation:

According to the newton's second law

force = mass x acceleration

So, acceleration is directly proportional to the force.

As the force is doubles, the acceleration is also doubled.

8 0
4 years ago
the density of gas is 1.775kg/m^3 at 27 degree celcius and pressure of 10^-5n/m^2. if the specific heat capacity at constant pre
MrRissso [65]

Answer:

76.52

Explanation:

5 0
2 years ago
Connie teaches her children to call adults "sir" and "ma'am" and to say "please" and "thank you." These rituals are known as
Nat2105 [25]
Manners. they are known as manners.
5 0
3 years ago
Help pls and thank you PLEASE NO LINKS
AveGali [126]

Answer: mutation

explanation: no other species of its kind will have this mutation

4 0
3 years ago
Read 2 more answers
What is the relationship between wavelength of light and the quantity of energy per photon?
slamgirl [31]

Answer:

The quantity of energy per photon is inversely proportional to the wavelength of the light.

Explanation:

Energy of light is given as

E = hf

where E = energy of the photons,

f = frequency of the light

If the number of photons = n

(E/n) = (h/n) f

Let (E/n) = E'

(h/n) = h'

But the frequency of light is related to wavelength through the relation

v = fλ

where v = speed of light = c

λ = wavelength of light

f = (c/λ)

E' = h' f

Substituting for f

E' = h' (c/λ)

h' and c are both constants, h'×c = K

E' = (K/λ)

So, the quantity of energy per photon is inversely proportional to the wavelength of the light.

Hope this Helps!!!

3 0
4 years ago
Read 2 more answers
Other questions:
  • How much work is performed when a 42kg crate is lifted to a height of 2m?
    5·1 answer
  • Why would elements found in the same group on the periodic table have similar reactivity’s
    14·1 answer
  • Are electrons lower in mass than neutrons
    7·2 answers
  • The resolving power of a microscope is proportional to the wavelength used. A resolution of 1.0 10-11 m (0.010 nm) would be requ
    7·1 answer
  • A 0.20 kg mass is oscillating at a small angle from a light string with a period of 0.78 s.
    13·2 answers
  • What two factors are used to calculate kinetic energy?
    9·1 answer
  • Heyy!! Please answer this correctly, it’s for my test. Do not spam or say you don’t know or you will be reported. If you don’t k
    9·1 answer
  • M
    9·1 answer
  • Ayuda por favor (archivo adjunto) con un ejercicio de expresión sobre periodo de oscilación de esta figura:
    12·1 answer
  • Which of the following scenarios represents a safe situation for the child?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!