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
maw [93]
3 years ago
9

A 8.3 resistor and a 5.4 resistor are connected in series with an emf source. The potential difference across the 5.4 resistor i

s measured with a voltmeter to be 12 V. Find the potential difference across the emf source.
Physics
1 answer:
WINSTONCH [101]3 years ago
6 0

Answer:

The potential difference across the source is 30.45 V.

Explanation:

In this setup we have a voltage divider, we were given the voltage difference on one of the resistors, we know that the difference pottential from the source in this case is the sum of the voltage in each individual resistor, so we can use the following equation to solve this problem:

V_resistor5.4 = (V_source)*(R_5.4)/(R_5.4+R_8.3)

V_source = (V_resistor5.4)*(R_5.4+R_8.3)/(R_5.4)

V_source = (12)*(5.4+8.3)/5.4

V_source = (12)*(13.7)/5.4 = 30.45 V

he potential difference across the source is 30.45 V.

You might be interested in
Does the thickness of the wire affect the strength of an electroscope
TiliK225 [7]
It probably does. I'm not 100% sure about it, but a thicker wire would increase the number of positive and negative charges in it.
4 0
3 years ago
The three notches in the graph occur where the driver changed gears. Describe the changes in velocity and acceleration of the ca
kaheart [24]
<h3>Answer : </h3><h3 /><h3>A ) The larger gear can be moved by applying a relatively small force on the smaller gear.</h3>

<h3>B ) The force applied on the smaller gear is transmitted without any loss to the larger gear .</h3><h3 /><h3>C ) the direction of motion can be changed without changing the direction of the applied force .</h3>

D ) the system would continue to move without any further, after and initial force has set in motion.

6 0
2 years ago
Which of these statements are true about hydroelectric power? Check all that are true. It is the most widely used renewable ener
IRINA_888 [86]

Answer:

the last one is triu!!!!!!

7 0
3 years ago
Some people today claim the Earth is flat. Produce an argument to prove that the
butalik [34]
It’s not flat because how can we be 3D when our planet is flat
6 0
3 years ago
Read 2 more answers
If the net force acting on a moving object CAUSES NO CHANGE IN ITS VELOCITY, what happens to the object's momentum?
SOVA2 [1]

If the net force acting on a moving object causes no change in its velocity, the object's momentum will stay the same.

<h3>What is momentum?</h3>

Momentum of a body in motion refers to the tendency of a body to maintain its inertial motion.

The momentum is the product of its mass and velocity.

This suggests that if the net force acting on a moving object causes no change in its velocity, the momentum of the object will remain the same.

Therefore, if the net force acting on a moving object causes no change in its velocity, the object's momentum will stay the same.

Learn more about momentum at: brainly.com/question/13554527

#SPJ1

5 0
1 year ago
Other questions:
  • How do you find the mechanical advantage of a wheel and axle
    11·1 answer
  • A runner with a mass of 80kg accelerates from 0 to 9 m/s in 3 s find the net force
    8·1 answer
  • Compared to the sun, a star whose spectrum peaks in the infrared is:
    6·1 answer
  • An arrow strikes a target moving at 75 m/s and embeds itself 15 cm into the target. If the arrow stopped with constant accelerat
    15·1 answer
  • Formation of a precipitate in a chemical reaction is considered a??
    15·2 answers
  • WILL MARK BRAINLIST IIF U GIVE ME CORRECT ANSWERS
    15·2 answers
  • A particle of mass m=375 g is launched with velocity of A =4 moves with a length AB=2.5m under the action of tractive force F=3.
    8·1 answer
  • Which atmospheric gas is used by plants and given off by animals? A. Carbon dioxide. B. Nitrogen C. Oxygen D. Argon​
    12·2 answers
  • A rock excerts a pressure of 20 N/cm^2 on the ground. what does 20N/cm^2 mean?
    9·1 answer
  • Which of the following facts are true about ground level ozone?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!