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Anit [1.1K]
2 years ago
13

A circuit contains two resistors in series. The voltage drop across the first is 10 V. The voltage drop across the second is als

o 10
V. What is the voltage provided by the power supply in this circuit?

A. 10 V

B. -10 V

C. 20 V

D. -20 V
Physics
1 answer:
Norma-Jean [14]2 years ago
6 0

Hi there!

Voltage in a series can be expressed by the following:

V_T = V_1 + V_2

In words, the total voltage is equal to the sum of the individual voltage drops in a SERIES circuit.

We can solve for the total voltage:

V_T = 10 + 10 = \boxed{\text{ D. 20 V}}

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The energy carried by one photon is directly proportional to its
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KengaRu [80]

Answer:

20 meters.

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6 0
2 years ago
Scientists are constantly exploring the universe, looking for new planets that support life similar to the life on
Molodets [167]
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6 0
2 years ago
Read 2 more answers
how much power is radiated as a sound from a band whose intensity is 1.6x10-3 w/m2 at a distance of 12m
Vesna [10]

2.89watts.

<h3>What is meant by sound intensity?</h3>
  • The average rate at which sound energy moves across a unit area normal to a given direction is used to determine a sound's intensity. This rate is generally stated in ergs per second per square centimeter.
  • Decibels are the units used to measure sound intensity, often known as sound power or sound pressure. The decibel (dB) unit is named after Alexander Graham Bell, who also created the audiometer and the telephone. An audiometer is a tool to gauge a person's hearing capacity for various noises.
  • Our ability to measure the flow of sound energy as a time-averaged vector quantity makes sound intensity measuring an effective method. We can identify sound sources and tell direct sound from reverberant sound in a room using the characteristics of sound intensity.

How much power is radiated as a sound from a band whose intensity is 1.6x10-3 w/m2 at a distance of 12m:

Formula: I\frac{P}{4\pi r^{2} }

I=1.6x10-3 w/m2

r=12m

I\frac{P}{4\pi r^{2} }

P=I4\pi r^{2}

   =(1.6x10-3\frac{W}{m^{2} } ) (4\pi (12m)^{2} )

   =2.89watts.

To learn more about sound intensity, refer to:

brainly.com/question/17062836

#SPJ9

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1 year ago
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the answer is foot luv <3

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