1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
11111nata11111 [884]
3 years ago
10

A capacitor is connected to an ac power supply. The maximum current is 4.0 A and the reactance of the capacitor is Xc = 8.0 Ω. W

hat is the average power dissipated by the capacitor? Select one: a. 32 W b.0 W c. 128 W d. 64 W
Physics
1 answer:
lions [1.4K]3 years ago
6 0

Answer:

option (b)

Explanation:

Io = 4 A

Xc = 8 ohm

The formula for the average power dissipated is given by

P = Vrms x Irms x cos Ф

Where, Ф be the phase difference between Vrms and Irms .

As we know that in case of capacitor, the current leads the voltage by 90 degree, it means the value of Ф is 90 degree.

Thus, Average power = Vrms x Irms x Cos 90

Average power = 0 Watt

You might be interested in
The substances listed on the left side of a chemical equation are the _____.
aivan3 [116]
<span>Reactants
Hope this helps.</span>
7 0
3 years ago
Read 2 more answers
Which describes two minerals that have different arrangements of their atoms?
Varvara68 [4.7K]
The best and most correct answer among the choices provided by your question is the third choice or letter C.
<span>
Two minerals that have different arrangements of their atoms may have different physical properties.</span>


I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
6 0
3 years ago
Over the last several decades scientists have considered the problem of nonrenewable natural resources, such as fossil fuels. Hu
sesenic [268]

The statement "Good locations for turbines are limited" describes a drawback to wind energy.

Answer: Option B

<u>Explanation:</u>

Wind energy is one of the most useful and efficient renewable energy sources. But nothing is ideal in this universe and the same thing applies for wind energy also. The generation of electricity from wind energy requires setting up of turbines.

And these turbines can be set up in plane areas which is free from any disturbance except wind flow. In open area and flat plane surface only the turbines can rotate freely with the effect of wind.

But regions where the wind flow is minimum due to snow formation like the northern region of earth, the turbines cannot be set up there. So the locations for setting up of turbines are limited for good outcome in wind energy. This is one of the drawback of wind energy.

8 0
3 years ago
Why does the area around the equator stay about the same temperature year round?
Verdich [7]
Axial Tilt and Sun Energy

This axial tilt means that during the Earth's journey around the sun the poles receive varying amounts of sunlight. The equator, however, receives relatively consistent sunlight all year. The consistency of energy means the equator's temperature stays relatively constant all year.
3 0
3 years ago
A disk with mass m = 9.5 kg and radius r = 0.3 m begins at rest and accelerates uniformly for t = 18.1 s, to a final angular spe
Eddi Din [679]
Ahhh this going to be confusing sorry...
1. α = Δω / Δt = 28 rad/s / 19s = 1.47 rad/s²

2. Θ = ½αt² = ½ * 1.47rad/s² * (19s)² = 266 rads

3. I = ½mr² = ½ * 8.7kg * (0.33m)² = 0.47 kg·m²

4. ΔEk = ½Iω² = ½ * 0.47kg·m² * (28rad/s)² = 186 J

5. a = α r = 1.47rad/s² * 0.33m = 0.49 m/s²

6. a = ω² r = (14rad/s)² * 0.33m = 65 m/s²

7. v = ω r = 28rad/s * ½(0.33m) = 4.62 m/s

8. s = Θ r = 266 rads * 0.33m = 88 m
8 0
3 years ago
Other questions:
  • Isaac Newton’s investigations of gravity explained which truth?
    9·1 answer
  • A 8.00g sample of substance (substance, molar mass = 152.0 g/mol) was combusted in a bomb calorimeter with a heat capacity of 6.
    13·1 answer
  • How much time does it take Mrs. Spencer to travel 240meters at a speed of 80meters per second?​
    15·1 answer
  • A crate is given a push across a horizontal surface. The crate has a mass m, the push gives it an initial speed of 1.90 m/s, and
    5·1 answer
  • A conclusion is a possible answer to a question. True or False?
    15·2 answers
  • If the intensity level by 15 identical engines in a garage is 100 dB, what is the intensity level generated by each one of these
    8·1 answer
  • A sky diver of mass 53 kg can slow herself to a constant speed of 95 km/h by orienting her body horizontally, looking straight d
    15·1 answer
  • When you push downward on a book at rest on a table, you feel an upward force. Does this force depend on friction? Defend your a
    5·1 answer
  • When your teacher drops a 1.5kg book from rest, it speeds up as it falls down suppose that book hits the ground at a speed of 5m
    15·1 answer
  • A thin, uniform stick of mass M and length L is at rest on a flat, frictionless surface to which one end of it is pinned. A smal
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!