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Sergeeva-Olga [200]
3 years ago
8

Electricity produces work when the electrons in a conductor

Physics
2 answers:
maks197457 [2]3 years ago
6 0
Electricity produces work when the electrons in a conductor move
from one location to a location with higher potential.  None of the
choices listed is correct.
Sever21 [200]3 years ago
6 0
Electricity produces work when electrons are in motion.

d. are placed in motion.



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. A solenoid coil consists of a single layer of 250 circular turns of wire with each turn having a 0.02m radius. The axial lengt
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Answer:

a)    L = 3.29 10⁻⁴ H,  b)U = 5.33 10⁻²  J

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a) The inductance is a solenoid this given carrier

           L = \frac{N \ \phi_B }{I}

The magnetic field inside the solenoid is

          B = μ₀ \frac{N}{l}  i

hence the magnetic flux

          Ф_B = B. A = μ₀ \frac{N \ A}{l \ i}

we substitute in the expression of inductance

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         A = 1.2566 10⁻³ m²

let's calculate

          L = 250² 4π 10⁻⁷ 1.2566 10⁻² / 0.3

          L = 3.29 10⁻⁴ H

b) The stored energy is

           U = ½ L i²

let's calculate

            U = ½ 3.29 10⁻⁴ 18²

            U = 5.33 10⁻²  J

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3 years ago
a battery is tested and it is found that the voltage Vout = 1.64V with the switch open and 1.63V with the switch closed. Find th
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Rate brainliest please. Thank you

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