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
andrezito [222]
3 years ago
8

The power in an electric circuit varies inversely with the resistance. If the power is 2,200 watts when the resistance is 25 ohm

s, find the resistance when the power is 1,100 watts.
Physics
1 answer:
valentinak56 [21]3 years ago
6 0

Answer:

The value of resistance when power is 1100 watts = R_{2} = 50 ohms

Explanation:

Power P_{1} = 2200 Watts

Resistance R_{1} = 25 ohms

Power P_{2} = 1100 Watts

Resistance R_{2} = we have to calculate

Given that the power in an electric circuit varies inversely with the resistance

⇒ P ∝ \frac{1}{R}

⇒ \frac{P_{2} }{P_{1} } = \frac{R_{1} }{R_{2} }

⇒ \frac{1100}{2200} = \frac{25}{R_{2} }

⇒ R_{2} = 50 ohms

This is the value of resistance when power is 1100 watts.

You might be interested in
What makes psychoanalysis different from behaviorism?
irakobra [83]
Psychoanalysis considers introspection and examines the subconscious.
7 0
2 years ago
Read 2 more answers
To make a given sound seem twice as loud, how should a musician change the intensity of the sound?
Serhud [2]

Answer:

C. Quadruple the intensity

Explanation:

The intensity of the sound is proportional to square of amplitude of the sound.

I ∝ A²

\frac{I_1}{A_1^2} = \frac{I_2}{A_2^2}\\\\I_2 = \frac{I_1A_2^2}{A_1^2}

When the given sound is twice loud as the initial value, then the new amplitude is twice the former.

A₂ = 2A₁

I_2 = \frac{I_1A_2^2}{A_1^2} \\\\I_2 = \frac{I_1(2A_1)^2}{A_1^2} \\\\I_2 = \frac{4I_1A_1^2}{A_1^2}\\\\ I_2 = 4I_1

Thus, to make a given sound seem twice as loud, the musician should Quadruple the intensity

3 0
3 years ago
What happens when a light bulb is disconnected in a parralel circuit? ​
VARVARA [1.3K]

Answer:

Hope i could help!

Explanation:

so all but one light could be burned out, and the last one will still function.

5 0
3 years ago
What are potential impacts of pollution on a watershed? Check all that apply.
Studentka2010 [4]

Answer:

contaminated drinking water

deaths of sea creatures that are used as a food source

limits to potential economic activities such as a fishing

Explanation:

A watershed is a large area that comprises of drainage area of all the surrounding water bodies meeting at a common affluence point before draining into sea or ocean or any other large water body. Pollution in this area can pollute the small water streams flowing through it, thereby polluting the larger water body into which it drains.  

Thus, the water extracted for drinking from such area will be contaminated. Pollution in larger water body can cause death of water creature and hence pose a threat to fishing.  

3 0
3 years ago
Read 2 more answers
A glass lens that has an index of refraction equal to 1.57 is coated with a thin layer of transparent material that has an index
Bogdan [553]

Answer:

Find the given attachment

5 0
3 years ago
Read 2 more answers
Other questions:
  • Let this oscillator have the same energy as a mass on a spring, with the same k and m, released from rest at a displacement of 5
    14·1 answer
  • Plz help will give brainliest and 85 points and u can answer one at a time if u want
    9·2 answers
  • Please answer this questions
    10·1 answer
  • Experiments need to be repeated by the scientist and also replicated by other scientists.
    10·2 answers
  • A 5-kg ball collides inelastically head-on with a 10-kg ball, which is initially stationary. Which of the following statements i
    15·1 answer
  • Increasing which of the following would increase the magnetic force between the permanent magnet and the coil? A. Transformer B.
    5·1 answer
  • 1. How are science and technology related? (1 point)
    6·1 answer
  • What do you use to write on a blackboard? ​
    11·2 answers
  • 120 J of work was done to lift an object 6 m above
    6·1 answer
  • A ball is thrown downward at 4.5 m/s and accelerates at 9.8 m/s^2. What is its instantaneous velocity 2.4 s later?​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!