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miv72 [106K]
4 years ago
12

Something that allows electrons to flow easily through it is called

Physics
2 answers:
zaharov [31]4 years ago
6 0
A material that allows electrons to flow easily through it is called a conductor.
SCORPION-xisa [38]4 years ago
4 0
A closed path through<span> which electrons </span>flow<span>. conductor. A material that </span>allows electrons<span> to move </span>easily through<span> it. current. </span>
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A dam is a structure built across a river to hold back the river's water. The flow of water through a dam is controlled by gates
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3 years ago
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the resistivity of gold is 2.44×10−8Ω⋅m at room temperature. A gold wire that is 0.9 mm in diameter and 14 cm long carries a cur
cricket20 [7]

Answer:

0.03605 V/m is the electric field in the gold wire.

Explanation:

Resistivity of the gold = \rho = 2.44\times 10^{-8} \Omega.m

Length of the gold wire = L = 14 cm = 0.14 m ( 1 cm = 0.01 m)

Diameter of the wire = d = 0.9 mm

Radius of the wire = r = 0.5 d = 0.5 × 0.9 mm = 0.45 mm = 0.45\times 0.001 m

( 1mm = 0.001 m)

Area of the cross-section = A=\pi r^2=\pi r^(0.45\times 0.001 m)^2

Resistance of the wire = R

Current in the gold wire = 940 mA = 0.940 A ( 1 mA = 0.001 A)

R=\rho\times \frac{L}{A}

V(voltage)=I(current)\times R(Resistance) ( Ohm's law)

\frac{V}{I}=\rho\times \frac{L}{A}

We know, Electric field is given by :

E=\frac{dV}{dr}

E=\frac{V}{L}

E=\frac{V}{L}=\rho\times \frac{I}{A}

E=2.44\times 10^{-8} \Omega.m\times \frac{0.940 A}{\pi r^(0.45\times 0.001 m)^2}=0.03605 V/m

0.03605 V/m is the electric field in the gold wire.

3 0
4 years ago
Okay guys I need serious help!!
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3 0
3 years ago
How do you calculate the effective resistance in a parallel circuit?
Degger [83]
Parallel Circuits<span>The voltage drop is the same across each parallel branch.The sum of the current in each individual branch is equal to the current outside the branches.<span>The equivalent or overall resistance of the collection of resistors is given by the equation. 1/Req = 1/R1 + 1/R2 + 1/R3 ...</span></span>
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Serjik [45]

Answer:

B. In the same group

Explanation:

Elements in the same group shared chemical properties.

8 0
4 years ago
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