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
dolphi86 [110]
3 years ago
12

If the resistance doubles while the voltage stays the same, what effect will that have on the power?

Physics
1 answer:
zepelin [54]3 years ago
4 0
The best formula to use for this question is

             Power = (voltage)² / R

So      Original power = (voltage)² / (original R)
and
           New power  =  (same voltage)² / (2 x original R)

That's equal to            (1/2) (voltage)² / (original R)

which is equal to    (1/2) (original power) .

So I guess the power decreases by half, and that's choice-B .
You might be interested in
What three things are needed for a mechanical wave
dedylja [7]

Search Results

Featured snippet from the web

Mechanical waves move energy through a medium by vibrating particles. Mechanical waves can't move energy through a vacuum because there is no matter inside of a vacuum. The three types of mechanical waves are transverse waves, surface waves, and longitudinal waves.

8 0
3 years ago
All moving objects don’t have momentum<br> A. True<br> B. False
mestny [16]

Answer:

No

Explanation:

Some objects gain momentum.

4 0
2 years ago
Read 2 more answers
A heat engine does 9200 J of work per cycle while absorbing 22.0 kcal of heat from a hightemperature reservoir. What is the effi
Morgarella [4.7K]

Answer: 9.9%

Explanation: efficiency = (work output /work input) × 100

Note that, 1 kilocalorie = 4184 joules, hence 22kcal = 22× 4184 = 92048 joules.

Work output = 9200 j and work input = 92048 j

Efficiency = (9200/92048) × 100 = 0.099 × 100 = 9.9%

4 0
3 years ago
One 10.0 Ω resistor is wired in series with two 10.0 Ω resistors in parallel. A 45.0 V battery supplies power to the circuit. Wh
RideAnS [48]
The answer you are looking for 3.0 A
4 0
3 years ago
Read 2 more answers
You are traveling in a spaceship at a speed of 0.70c away from Earth. You send a laser beam toward the Earth traveling at veloci
Dovator [93]
The question is asking to describe and state and calculate what do the observer on the earth measure for the speed of the laser beam, and base on my research, the answer would be v = 1bc, I hope you are satisfied with my answer and feel free to ask for more 
6 0
3 years ago
Read 2 more answers
Other questions:
  • There are clouds forming over Florida. The temperatures in the clouds and in the air are above freezing. Which form of precipita
    5·1 answer
  • Can the validity of a model be limited, or must it be universally valid? How does this compare to the required validity of a the
    11·1 answer
  • What is the difference between a wedge and a screw?
    10·1 answer
  • Group one on the periodic table shares which characteristics.?
    11·1 answer
  • WILL MARK BRAINLIEST
    11·1 answer
  • WhAT is the change IN THE entropy of 2.0kg of h2o molecules when transform at a constant pressure of 1 atm from water at 100 deg
    13·1 answer
  • Douun Dinosaur takes 32 s to walk along a straight road to a store 79 m away. What is Douun's speed in kilometers per hour?
    13·1 answer
  • A sound wave travels at 379 m/sec and has a wavelength of 8 meters. Calculate its frequency and period.
    13·1 answer
  • Q: Explain the shape of the I-V graph of the filament lamp?<br>​
    5·1 answer
  • At what angle two forces P + Q and (P - Q) act so that their resultant is :
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!