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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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The sound level at a distance of 2.30 m from a source is 115 dB. At what distance will the sound level have the following values
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Explanation:

Given data

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solution

first we calculate here power and intensity and with this power and intensity we will find distance

we know sound level  β  = 10 log(I/I_{0})        ......................a

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