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Marizza181 [45]
3 years ago
6

Which device is most likely to operate on alternating current?

Physics
2 answers:
Ksenya-84 [330]3 years ago
6 0

Answer : The correct option is, (A) Refrigerator

Explanation :

There are two type of current which are direct current (DC) and alternating current (AC).

Direct current : In this, the electric current or charge flows in one direction only.

Alternating current : In this, the electric current or charge changes in periodical direction. It is used to supply power to houses, office building, etc.

From the given options, refrigerator device is most likely used to operate on alternating current.

While the other options, flashlight, remote control and cell phone is used to operate on direct current. In these devices, a battery is used which is a source of direct current.

Hence, the correct option is, (A) Refrigerator

aalyn [17]3 years ago
4 0
It is A. a refrigerator cause a alternating current is current that doesn't stop and the refrigerator is plug into the wall.
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Answer:

The relationship between voltage, current, and resistance is described by Ohm's law. This equation, i = v/r, tells us that the current, i, flowing through a circuit is directly proportional to the voltage, v, and inversely proportional to the resistance, r.

5 0
3 years ago
A student witnesses a flash of lightning and then t=2.5s later the student hears assiciated clap of thunder. (please show work)
frosja888 [35]

Answer:

857.5 m

2.8583×10⁻⁶ seconds

Explanation:

Time taken by the sound of the thunder to reach the student = 2.5 s

Speed of sound in air is 343 m/s

Speed of light is 3×10⁸ m/s

Distance travelled by the sound = Time taken by the sound × Speed of sound in air

⇒Distance travelled by the sound = 2.5×343 = 857.5 m

⇒Distance travelled by the sound = 857.5 m

Time taken by light = Distance the light travelled / Speed of light

\text{Time taken by light}=\frac{857.5}{3\times 10^8}\\\Rightarrow  \text{Time taken by light}=2.8583\times 10^{-6}

Time taken by light = 2.8583×10⁻⁶ seconds

3 0
3 years ago
A diffraction grating is illuminated simultaneously with red light of wavelength 670 nm and light of an unknown wavelength. The
marusya05 [52]

Answer:

dsin∅ = m× λ

so, dsin∅red = 3(670nm)

also, dsin∅? =5λ?

however ,if they overlap then dsin∅red = dsin∅?

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∴λ = 402nm

Explanation:

4 0
3 years ago
You drop a 20 Ton object and a
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Explanation:

it dosent depend on the weights of the items. I'll reach the ground at same time taking as no air friction or restrictions.

i.e

v = u + gt

whte v is final velocity of the object

u is initial velocity of the object

g is acceleration due to gravity and

t is time. thanks

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7 0
2 years ago
A stone is thrown vertically up. What kind of energy did the stone have initially? What happens to this energy as the stone asce
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kinetic energy at first

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