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LuckyWell [14K]
4 years ago
9

A series circuit has a 100-Ω resistor, 4.00-mH inductor and a 0.100-μF capacitor connected across a 120-V rms ac source at the r

esonance frequency. What is the power dissipated by the circuit
Physics
1 answer:
scZoUnD [109]4 years ago
6 0

Answer:

144 watt

Explanation:

resistance, R = 100 ohm

L = 4 mH

C = 100 micro farad

At resonance, the impedance is equal to R

Z = R

Vrms = 120 V

Irms = Vrms / R = 120 / 100 = 1.2 A

Power is given by

P = Vrms x Irms x CosФ

Where, CosФ is called power factor

At resonance, CosФ = 1  

Power, P = Irms x Vrms

P = 1.2 x 120 x 1

P = 144 Watt.

Thus, the power is 144 watt.

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Answer:

The correct answers are It is the resistance of an object to changes in its motion, and It is a force

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3 years ago
A beam of light, initially travelling in the air, strikes water surface at an angle of 24.5° with the normal. If the speed of li
kykrilka [37]

Answer:

Explanation:

n = 3.00e8/2.22e8 = 1.35

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8 0
3 years ago
Due to an influx of wild animals, you need to enclose your garden. You have 500 feet of fencing and will enclose the garden on t
elena55 [62]

Answer:

so  length of the fence  is 250 feet

Explanation:

Given data

fencing (L) = 500 feet

enclose the garden = 3 sides

to find out

length of the fence

solution

we consider barn length x and width y

so we say  x +2y = 500   ........1

we want to maximize length i.e xy = f

so we say

df/dx = ƛ × dL/dx

y =  ƛ × 1

and

df/dy = ƛ × df/dy

x = ƛ × 2

from equation 1 we can say

2 ƛ + 2 ƛ = 500

so  ƛ = 500/4 = 125

so that x = 2× 125 ,  y = 125

so x = 250 , y = 125

so  length of the fence  is 250 feet

3 0
4 years ago
Increasing the frequency of a wave does what to its period
Ivenika [448]
If the frequency is large then the period is short and if the frequency is small then the period is long
5 0
4 years ago
Do animals fart and do all animals blink and do animals have the same trait of humans
pantera1 [17]
Uh yes they do fart and blink. Like very living person, and animal. They do have the same traits, as that to humans, but their biology is set up differently. They are stronger and quicker.
I'm not going to state that humans are animals, because I don't agree. Humans are NOT animals!!! But that's my belief, oppose as you like.
I think the best way to answer this question, is to imagine being an animal. Possibly a wild animal. What do you do? How do you find food? Where do you sleep? See, usually humans know how to be disgusted about living in unsanitary and unsafe environments. I mean looking at the traits, they're biology is just set up differently from humans.

I hope this helps.<span />
8 0
4 years ago
Read 2 more answers
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