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
netineya [11]
3 years ago
12

Three resistors have resistance of R, 2R, and 3R, are connected to a 12 volt energy source as shown in the circuit diagram. The

current is 2 A. What is the potential difference across the resister with resistance R?
a. 2 volts
b. 4 volts
c. 6 volts
Physics
1 answer:
Kipish [7]3 years ago
7 0

Answer:

2volts

Explanation:

Let us assume the resistor are in series

Equivalent resistance = R + 2R + 3R

Equivalent resistance = 6R

Since different voltage flows through the resistors

V = IR

Given V = 12V

I = 2A

Assume R = 1ohms

V = IR

V = 2 * 1

V = 2volts

Hence the potential difference across the resister with resistance R is 2volts

You might be interested in
Someone help in physics half life
saveliy_v [14]
To get the number of unstable atoms:
Column 3:  take 900 - 90 = 810  The numbers from column 2

To get the Number of decayed atoms:
take the 810 * 10% = 810 * .1 = 81

Follow the pattern for the rest of the table.
4 0
4 years ago
In a ruby laser, an electron jumps from a higher energy level to a lower one. if the energy difference between the two levels is
Vaselesa [24]

The wavelength of the emitted photon is(\lambda)= 690nm

<h3>How can we calculate the wavelength of the emitted photon?</h3>

To calculate the wavelength of the photon we are using the formula,

\triangle E= \frac{h\times c}{\lambda}

Or,\lambda= \frac{h\times c}{\triangle E}

We are given here,

\triangle E= The energy difference between the two levels = 1. 8 ev= 1.8\times 1.6 \times 10^{-19} C.

h= Planck constant = 6.626\times 10^{-34} Js.

c= speed of light = 3\times10^8 m/s.

We have to find the wavelength of the emitted photon =\lambda m.

Therefore, we substitute the known parameters in the above equation, we can find that,

\lambda= \frac{h\times c}{\triangle E}

Or,\lambda= \frac{6.626\times 10^{-34}\times 3\times 10^8}{1.8\times 1.6 \times 10^{-19}}

Or,\lambda= 690\times 10^{-9} m

Or,\lambda=690 nm.

From the above calculation we can conclude that the wavelength of the emitted photon is 690nm.

Learn more about ruby laser:

brainly.com/question/17245697

#SPJ4

8 0
2 years ago
As altitude increases in the troposphere and stratosphere, the air temperature does what?
natima [27]

Answer:

1

Explanation:

3 0
3 years ago
28.25 mL, three signicant digits
Mazyrski [523]

Answer:3) variable affinities (stickiness) for something it is running past. Physical ... -measurement number (significant digits) unit (such as inches) -Significant ... Mass 1 oz. 28.25 g. Relations Between English and Metric Units Mass 1 dram. 1.772 g ... -graduated cylinder has an error of about 1% (± 0.1 mL in 10 mL). -Volumetric

Explanation:

3 0
3 years ago
Read 2 more answers
The image represents a sound wave as it goes through several changes. Describe how the waves changes. where does it get louder?
Ksju [112]

Answer:

At point A. it gets kinda loud then at point B. it gets very loud than at point C. it gets quieter than at point D. it gets more silent.

Explanation:

Because you can tell when the waves get large it gets louder and then when the waves get more far apart then it get more quiet. Hope this helped!

4 0
3 years ago
Other questions:
  • What is electromagnet and list the types of electromagnet.​
    13·2 answers
  • What are the most common shapes of lunar craters, and why?
    8·1 answer
  • A cylindrical shell of radius 7.00 cm and length 2.44 m has its charge uniformly distributed on its curved surface. The magnitud
    12·1 answer
  • The sound waves used for sonar are _____.
    11·2 answers
  • The current interest in continental drift was started with the notion of sea- floor spreading, which was propounded by Hess and
    9·1 answer
  • A ray of yellow light ( f = 5.09 × 1014 Hz) travels at a speed of 2.04 × 108 meters per second in
    8·2 answers
  • Hi:) anyone able to explain that formula^? I thought acceleration is supposed to be the change in velocity over time?
    14·2 answers
  • Isss in the pic pls help
    7·1 answer
  • Help me please i dont understand
    9·1 answer
  • If you were asked to design a capacitor in which small size and large capacitance were required, what would be the two most impo
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!