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Ugo [173]
3 years ago
14

. Question: 23 of 24:. Which statement is true regarding DC current?. Select one of the options below as your answer:. . A.. The

electrons move back and forth.. B.. There can only be one voltage supplied.. C.. A high voltage current can be transformed into a low voltage current.. D.. A low voltage current can be transformed into a high voltage current.. E.. This is what is sent from the power plants to your home..
Physics
2 answers:
ikadub [295]3 years ago
6 0

Answer: The correct answer is B.

Explanation:

In DC current, the electric current flows only in one direction. The rate of flow of electrons constitutes the current.

DC voltage and DC current are constant with time.

For example, battery supplies DC voltage.

In AC current, the electric current reverses its direction periodically. Here, the electrons move back and forth. AC voltage can be supplied long distances. For example, AC voltage is supplied to our home.

Step-up and step-down transformers are used to increase or decrease the voltage.

The statement is true about DC current from the given options

is "There can only be one voltage supplied".

Umnica [9.8K]3 years ago
4 0
"<span>There can only be one voltage supplied" is the statement among the statements given in the question that true regarding DC current. The correct option among all the options that are given in the question is the second option or option "B'. I hope the answer comes to your help.</span>
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calculate the electric field strength between two parallel plates separated by 0.50 cm, across which is a potential of 12 volts.
Alexxandr [17]
Formula for Electric Field strength , E =  V/d

where V = Voltage in volts, and d = distance of separation in meters.

d = 0.5 cm = 0.005 m,    V = 12 V

E = V/d =  12 / 0.005

E = 2400

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3 years ago
Infrared radiation from young stars can pass through the heavy dust clouds surrounding them, allowing astronomers here on Earth
Semmy [17]

Answer:

\lambda=6.83\times 10^{-5}\ m

Explanation:

Given that,

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We know that,

\lambda=\dfrac{c}{f}\\\\\lambda=\dfrac{3\times 10^8}{4.39\times 10^{12}}\\\\=6.83\times 10^{-5}\ m

So, the wavelength of the infrared radiation is 6.83\times 10^{-5}\ m.

5 0
3 years ago
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Alexus [3.1K]
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3 years ago
Represent 7468 N with SI units having an appropriate prefix. Express your answer to four significant figures and include the app
Musya8 [376]

Answer:

7.468 kN

Explanation:

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Tera = 10¹²

The number is 7468.0

Here, the only solution where the number of significant figures is kilo. If any other prefix is chosen then the significant figures will increase.

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7 0
3 years ago
PLEASE HELP ASAP!!
kolezko [41]

A. Wedge

and

B.Screw

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Please mark me brainliest! Thanks!

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