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
s2008m [1.1K]
3 years ago
8

explain how you can determine how much power a circuit will generate if you know the voltage and resistance but not the current

Physics
1 answer:
larisa [96]3 years ago
8 0
The general formula for power dissipation is:
Power = Current x Voltage
However, if you only know the voltage and the resistance, you can calculate the current using Ohm's Law, which is usually given as:
Voltage = Current x Resistance
However, you can rearrange this to give:
Current = Voltage/Resistance
You can then substitute this into the expression for power dissipation to yield an equation that gives an expression for power in terms of only voltage and resistance:
Power = Voltage^{2} / Resistance
You might be interested in
What is a example of nuclear fusion
andrew11 [14]

Energy of our sun. It composed of a lot of hydrogen and by the two fusion of isotopes. Helium is then released.

4 0
3 years ago
Two pieces of flint rock produce a visible spark
noname [10]
<span>(3) electromagnetic energy and internal energy</span>
4 0
3 years ago
Write the total equation for the proton-proton chain reaction that takes place in stars?
Sav [38]
Supernova?? lollll.
6 0
3 years ago
If ram is 40kg and travels 200m in 30 sec find his power​
WARRIOR [948]

Work done

  • N×200
  • mg200
  • 40(10)(200)
  • 400(200)
  • 80000J

Power

  • Work done/Time
  • 80000/30
  • 8000/3
  • 2668W
8 0
2 years ago
Read 2 more answers
What is the role of equations in this course?
Karolina [17]
That will depend on which course you're talking about. It will be a minor role in, say, Maritime Law or Comparitive Religion, but a major one in, say, Particle Physics or Linear Algebra.
4 0
3 years ago
Other questions:
  • A cell phone weighing 80 grams is flying through the air at 15 m/s. What’s is it’s kinetic energy
    5·1 answer
  • A beam of red and blue light in air is incident at 30º on a glass surface. Which is true?
    10·1 answer
  • A 7-n vector at an angle of 45° to the horizontal has a vertical component that is about _______.
    6·1 answer
  • Two people carry a heavy electric motor by placing it on a light board 1.80 m long. One person lifts at one end with a force of
    10·1 answer
  • At what speed, in m/s, would a moving clock lose 4.5 ns in 1.0 day according to experimenters on the ground
    15·1 answer
  • A car moving with a velocity of 20 meters/second has
    7·2 answers
  • Electrons (mass m, charge –e) are accelerated from rest through a potential difference V and are then deflected by a magnetic fi
    13·1 answer
  • Students are using a mallet to hit a drum. The diagram below shows this action.
    7·2 answers
  • What is the velocity of a 1.3 kg puppy with a forward momentum of 6 kg m/s​
    12·1 answer
  • Whats the most useless invention of all time according to you?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!