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
Burka [1]
3 years ago
13

What does a light bulb marked 100 W mean? (A) Uses 100 A of energy per second. (B) Uses 100 J of current per second. (C) 100 C o

f charge flows through the bulb per second. (D) Uses 100 V battery (E) none of these.
Physics
1 answer:
Mandarinka [93]3 years ago
3 0

Answer:

(E) none of these.

Explanation:

first that all we need the meaning of a Watt

<em>" is a unit of power. In the International System of Units (SI) it is defined as a derived unit of 1 </em><em>joule</em><em> per </em><em>second</em><em>,[1] and is used to quantify the rate of </em><em>energy</em><em> transfer."  </em>

<em>definition taken from wikipedia.org</em>

now with this concept we have that:

100 W means 100 J/s .Therefore it uses 100 J energy per second

therefore on the answers don't mention this three terms together

Joules, energy and second so the answer must be.

(E) None of these

You might be interested in
Why is gasoline so flammable
Karo-lina-s [1.5K]
Flammable and combustible liquids themselves do not burn. It is the mixture of their vapours and air that burns. Gasoline, with a flashpoint of -40°C (-40°F), is a flammable liquid. Even at temperatures as low as -40°C (-40°F), it gives off enough vapour to form a burnable mixture in air.




Hope this helps




I looked this up




Don't forget to rate and thanks me
8 0
3 years ago
Read 2 more answers
Which statement is TRUE? Question 5 options: Waves travel at different speeds through different materials. Wave speed depends on
Sunny_sXe [5.5K]

Answer:

Waves move through different vmaterials

5 0
2 years ago
Read 2 more answers
An ac generator consists of a coil with 40 turns of wire, each with an area of 0.06 m2 . The coil rotates in a uniform magnetic
mezya [45]

Answer:

d. 332 V

Explanation:

Given;

number of turns in the wire, N = 40 turns

area of the coil, A = 0.06 m²

magnitude of the magnetic field, B = 0.4 T

frequency of the wave, f = 55 Hz

The maximum emf induced in the coil is given by;

E = NBAω

Where;

ω is angular velocity = 2πf

E = NBA(2πf)

E = 40 x 0.4 x 0.06 x (2 x π x 55)

E = 332 V

Therefore, the maximum induced emf in the coil is 332 V.

The correct option is "D"

d. 332 V

7 0
3 years ago
If the Sun were to stop shining, Earth would stop receiving heat and light within about eight minutes. Earth, however, would rem
hjlf
If<span> The </span>Sun<span> Went Out, How Long </span>Could<span> Life On </span>Earth<span> Survive? ... (which is actually physically impossible), the </span>Earth would stay<span> warm—at least ... from the planet's core </span>would<span> equal the</span>heat<span> that the </span>Earth<span> radiates into space, ... Photosynthesis </span>would<span> halt immediately, and </span>most<span> plants</span>would<span> die </span>in<span> a few </span>weeks<span>.</span>
6 0
3 years ago
Read 2 more answers
How long did it take our planet to produce the fossil fuels we're using today?
Vesna [10]

Answer:

It takes millions sometimes hundreds of millions Explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • In each case, a charged rod, made of the dense rubber ebonite, comes close or is in contact with the top of an electroscope. The
    11·2 answers
  • A garbage truck has a mass of 2100 kg. It starts from rest and travels 75 meters in 15 seconds. The truck uniformly accelerates
    9·1 answer
  • Strongest Element on Earth
    5·1 answer
  • As the moon revolves around the earth,it also rotated on its axis why is that the same side of the moon is always visible from e
    8·2 answers
  • The free-electron density in a copper wire is 8.5×1028 electrons/m3. The electric field in the wire is 0.0520 N/C and the temper
    11·1 answer
  • If you place a free electron and a free proton in the same electric field, how will the forces acting on them compare? 82. How w
    14·1 answer
  • What is an alloy?
    11·1 answer
  • While standing at the edge of the roof of a building, a man throws a stone upward with an initial speed of 7.07 m/s. The stone s
    14·1 answer
  • If the balloon can barely lift an additional 3500 N of passengers, breakfast, and champagne when the outside air density is 1.23
    14·1 answer
  • I’m in the middle of a test right now. If anybody knows this can they help
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!