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marin [14]
2 years ago
9

A 190 mH inductor is connected to an emf given by

Physics
1 answer:
Bas_tet [7]2 years ago
7 0

(a) The reactance of the inductor is 25.46 ohms.

(b) The expression for the current through the inductor is I(t) = (6.32 A) sin(134t)

<h3>Ractance of the inductor</h3>

The reactance of the inductor is calculated as follows;

XL = ωL

where;

  • ω is angular frequency
  • L is 190 mH

v(t) = (161 V) sin(134t)

v(t) =  V sin(ωt)

The reactance of the inductor is calculated as follows;

XL = (134) x (190 x 10⁻³)

XL = 25.46 ohms

<h3>Peak current in the circuit</h3>

I₀ = V₀/XL

I₀ = (161) / (25.46)

I₀ = 6.32 A

<h3>Expression for the current through the inductor</h3>

I(t) = (6.32 A) sin(134t)

Learn more about inductance here: brainly.com/question/16765199

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Answer:

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Explanation:

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solving for E_0 we get

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putting in the numbers we get:

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\boxed{E_0 = 2180.53N/C.}

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putting in numerical values we get:

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The average energy density of the laser light is

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U_{avg} = (8.85*10^{-12}) (2180.53)^2

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8 0
4 years ago
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3 years ago
A 750 Watt hairdryer is used for 15 minutes. Calculate the Kwhr used. Calculate the cost to use 15 min. every day for 1 year @ 8
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Part (a):
We know that:
1 kw = 1000 watt ..........> Therefore, to convert watt into kw, we will divide by 1000
1 hour = 60 min ..........> Therefore, to convert mins into hours, we will divide by 60
Based on the above, the conversion results for the two units together would be as follows:
1 watt minute is equivalent to <span>0.000017 kilowatt hours
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Part (b):
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3 years ago
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yKpoI14uk [10]
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Answer:

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