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photoshop1234 [79]
3 years ago
10

Current in conducter is​ due to

Physics
1 answer:
maw [93]3 years ago
4 0

Answer:

Free electrons in a conductor

Explanation:

Current in a conductor is due to flow or motion of the free electrons in it.

The electric current is the flow of electrons in a conductor. The force that causes the current flow through a conductor is called the voltage.

Hope this helps you out! : )

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What property of matter determines the electrical conductivity of a substance?
vlada-n [284]

"Valence" electrons or the free electrons

<u>Explanation:</u>

Electrical conductivity can be defined as the property of the substance to conduct electricity, heat etc through it. This conductivity is caused due to the migration of particles which are electrically charged within the atomic lattice of the substance.

The outermost electrons or the electrons in valence shell are the main cause behind the conductivity property exhibited by any substance. Higher the number of electrons in outer shell, higher the conductivity.

Since these electrons are in the outermost shell, they can move easily. Under an impact of applied heat, charge these electrons migrate through the atomic lattice and thus conducts electricity, heat as the case may be.

4 0
3 years ago
A gas sample is heated from -20.0°C to 57.0°C and the volume is increased from 2.00 L to 4.50 L. If the initial pressure is 0.14
Svetach [21]

Answer:

The answer is e.

Explanation:

We take:

T_{1}=253K

V_{1}=2.00 l

P_{1}=0.14atm

V_{2}=4.50 l

T_{2}=330K

Taking the gas as an ideal gas, we can use the ideal gas law:

\frac{PV}{nRT}

⇒ n=\frac{P_{1}V_{1}}{RT_{1}} ⇒ n=0.013mol

Then:

P_{2}=\frac{nRT_{2}}{V_{2}} ⇒ P_{2}=0.0811 atm

Taking R=0.08205atmL/molK.

5 0
3 years ago
A rocket has initail mass M begins to move from space , with an exhaust constant speed . Find the mass of the rocket while has t
irina1246 [14]

Answer:

m=\frac{m_{0}}{e}

Explanation:

Equation of the rocket is,

m\frac{dv}{dt} =F-v'\frac{dm}{dt}

Here, v' is the relative velocity of rocket.

In space F is zero.

So,

m\frac{dv}{dt} =-v'\frac{dm}{dt}\\dv=-v'\frac{dm}{m} \\v=-v'ln\frac{m}{m_{0} }

Now the momentum can be obtained by multiply by m on both sides.

P=-v'mln\frac{m}{m_{0} }

Now for maxima, \frac{dP}{dm}=0

-v'ln\frac{m}{m_{0} }-v'm\frac{m_{0}}{m }m_{0=0

Now,

ln(\frac{m}{m_{0} } )=-1\\\frac{m}{m_{0} }=\frac{1}{e} \\m=\frac{m_{0}}{e}

Therefore, the mass of the rocket while having maximum momentum is \frac{m_{0}}{e}

3 0
4 years ago
By counting the number of crests that pass in a given amount of time, a person can calculate the
ladessa [460]
By calculating the crests, you can find the waves' frequency.
Hope this helps!
3 0
3 years ago
What phases is shown in each of the diagrams above?
taurus [48]
Answer:
A. Interphase
B. Cytokinesis
C. Metaphase
D. Anaphase


Correct me if I was wrong :)
7 0
4 years ago
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