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
mamaluj [8]
3 years ago
8

Find the equivalent resistance, current, and voltage across each resistor when the specified resistors are connected across a 20

V battery. Part (a) uses two resistors with resistance values that can be set with the animation sliders, and you can use the animation to verify your calculation. In Part (b), three resistors are specified. (a) Two resistors are connected in series across a 20 V battery, as illustrated above. Let R1

Physics
2 answers:
timama [110]3 years ago
3 0

Answer:

Explanation:

The question is incomplete. Here is the complete question.

"Find the equivalent resistance, the current supplied by the battery and the current through each resistor when the specified resistors are connected across a 20-V battery. Part (a) uses two resistors with resistance values that can be set with the animation sliders, and you can use the animation to verify your calculation. In part (b), three resistors are specified. (a) Two resistors are connected in series across a 20-V battery. Let R1 = 1 Ω and R2 = 2 Ω. Rea = (b) Add a third resistor to the circuit in series. Let R1 = 1 Ω, R2 = 2 Ω, and R3 = 3 Ω"

Using ohms law formula to solve the problem

E = IRt

E is the supply voltage

I is the total current

Rt is the total equivalent resistant.

a) Given two resistances

R1 = 1ohms and R2 = 2ohms

If the resistors are Connected in series across a 20V supply voltage,

-Equivalent resistance = R1+R2

= 1ohms + 2ohms

= 3ohms

- In a series connected circuit, same current flows through the resistors.

Using the formula E = IRt

I = E/Rt

I = 20/3

I = 6.67A

The current in both resistors is 6.67A

- Different voltage flows across a series connected circuit.

Using the formula V = IR

V is the voltage across each resistor

I is the current in each resistor

For 1ohms resistor,

V = 6.67×1

V = 6.67Volts

For 2ohms resistor

V = 6.67×2

V = 13.34Volts

b) If the resistors are three

R1 = 1ohms, R2 = 2ohms R3 = 3ohms

- Total equivalent resistance = 1+2+3

= 6ohms

- Current in each resistor I = E/Rt

I = 20/6

I = 3.33A

Since the same current flows through the resistors, the current across each of them is 3.33A

- Voltage across them is calculated as shown:

V = IR

For 1ohm resistor

V = 3.33×1

V = 3.33volts

For 2ohms resistor

V = 3.33×2

V = 6.66volts

For 3ohms resistor

V = 3.33×3

V = 9.99volts

alukav5142 [94]3 years ago
3 0

Complete Question

The complete question is shown on the first uploaded image

Answer:

For a

R_{eq}= 3 \Omega

I = 6.667 A

\Delta V_1 = 6.667  \ V

\Delta V_2 = 13.334  \ Volt

For  B

R_{eq}= 6 \Omega

I = 3.333 A

\Delta V_1 = 3.333 \ Volt

\Delta V_2 = 6.667 \ Volt  

\Delta V_3 = 10 \ Volt  

Explanation:

 From the question we are told that

           The voltage of the battery is  V = 20 \ V

           The  first resistance is R_1 = 1 \Omega

           The second resistance is R_2 = 2 \Omega

The equivalent resistance is mathematically represented as

           R_{eq} = 1+2

                  R_{eq}= 3 \Omega

The current  is mathematically represented as      

           I = \frac{V}{R_{eq}}

So

           I = \frac{20}{3}

            I = 6.667 A

The first voltage change is mathematically represented as

               \Delta V_1  = V_1 - V_o

               \Delta V_1 = (R_1  * I) - 0

               \Delta V_1 = 6.667  \ V

The second voltage change is mathematically represented  as

               \Delta V_2 = V_2 - V_o

               \Delta V_2 = (R_2  * I  )  - 0

               \Delta V_2 =  2* 6.667     \ Volt

                 \Delta V_2 = 13.334  \ Volt    

For  B

      V = 20 V

      The  first resistance is R_1 = 1 \Omega  

     The second resistance is R_2 = 2 \Omega

     The third  resistance is R_3 = 3 \Omega

The equivalent resistance is  

        R_{eq} =  1+ 2 +3

               R_{eq}= 6 \Omega

The current is mathematically  evaluated as

          I = \frac{20}{6}

              I = 3.333 A

The first voltage change is mathematically represented as

               \Delta V_1  = V_1 - V_o

               \Delta V_1 = (R_1  * I) - 0

               \Delta V_1 = (1 *3.333)  \ V

               \Delta V_1 = 3.333 \ Volt

The second voltage change is mathematically represented  as

               \Delta V_2 = V_2 - V_o

               \Delta V_2 = (R_2  * I  )  - 0

               \Delta V_2 =  2* 3.333   \ Volt

                 \Delta V_2 = 6.667 \ Volt    

The second voltage change is mathematically represented  as

               \Delta V_3 = V_3 - V_o

               \Delta V_3 = (R_3  * V  )  - 0

               \Delta V_3 =  3 * 3.333   \ Volt

                 \Delta V_3 = 10 \ Volt    

You might be interested in
If the radius of the atom is the distance from point A to D, where is the MOST likely location of the LEAST concentration of mas
marshall27 [118]

Answer:

i think b

Explanation:

4 0
2 years ago
Silk flexibility would be considered a trait. TRUE OR FALSE
wel
The answer would be true.

Explanation:
Although some silk in is more flexible than others, there are many varieties. There are high medium and low flexibility. Even though there are different levels, it is still considered a trait. Again, the answer in True.

Hope this helped you. I did some research on this before, so this should be correct. If you aren’t satisfied then you can ask me a question! Have a nice day.
:)
6 0
3 years ago
Read 2 more answers
a plane passes over Point A with a velocity of 8,000 m/s north. Forty seconds later it passes over Point B with a velocity of 10
ValentinkaMS [17]

Acceleration = (change in velocity) / (time for the change)

Change in velocity = (ending velocity) - (starting velocity)

Change in the plane's velocity = (10,000 m/s north) - (8,000 m/s north)

Change in the plane's velocity = 2,000 m/s north

Time for the change = 40 seconds

Acceleration = (2,000 m/s north) / (40 seconds)

<em>Acceleration = 50 m/s² north </em>

8 0
2 years ago
a satellite is traveling in a orbit around the earth. what change would cause it to experience more gravitational force from the
never [62]
The correct answer is:
<span>A. orbiting closer to the earths surface. 

In fact, the gravitational force exerted by the Earth on the satellite is
</span>F=G \frac{Mm}{r^2}
<span>where
G is the gravitational constant
M is the Earth mass
m is the satellite mass
r is the distance of the satellite from the Earth's surface

We can see that, if the satellite orbits closer to the Earth's surface, its distance r from the centre of the planet decreases. But when r decreases, F (the gravitational force) increases, so A is the correct answer.</span>
7 0
3 years ago
a stone is thrown horizonttaly from a cliff of a hill with an initial velocity of 30m/s it hits the ground at a horizontal dista
ELEN [110]

Answer:

a) Time = 2.67 s

b) Height = 35.0 m

Explanation:

a) The time of flight can be found using the following equation:

x_{f} = x_{0} + v_{0_{x}}t + \frac{1}{2}at^{2}   (1)

Where:

x_{f}: is the final position in the horizontal direction = 80 m

x_{0}: is the initial position in the horizontal direction = 0

v_{0_{x}}: is the initial velocity in the horizontal direction = 30 m/s

a: is the acceleration in the horizontal direction = 0 (the stone is only accelerated by gravity)

t: is the time =?  

By entering the above values into equation (1) and solving for "t", we can find the time of flight of the stone:  

t = \frac{x_{f}}{v_{0}} = \frac{80 m}{30 m/s} = 2.67 s

b) The height of the hill is given by:

y_{f} = y_{0} + v_{0_{y}}t - \frac{1}{2}gt^{2}

Where:

y_{f}: is the final position in the vertical direction = 0

y_{0}: is the initial position in the vertical direction =?

v_{0_{y}}: is the initial velocity in the vertical direction =0 (the stone is thrown horizontally)            

g: is the acceleration due to gravity = 9.81 m/s²

Hence, the height of the hill is:

y_{0} = \frac{1}{2}gt^{2} = \frac{1}{2}9.81 m/s^{2}*(2.67 s)^{2} = 35.0 m  

I hope it helps you!

5 0
3 years ago
Other questions:
  • “doing the wave” is a common activity in large football stadiums. what type of wave is this?
    5·1 answer
  • Suppose wave pulses in an aquarium are produced by a mechanical motor that moves a bob up and down at the surface. The setup use
    13·1 answer
  • 7. Thermal energy is the
    11·1 answer
  • Light waves have constructive interference because they are emitted _____.
    11·1 answer
  • Write short note on fulcrum​
    12·1 answer
  • - A 9,300 kg. railroad car traveling at a velocity of 15m/s strikes a second boxcar
    6·1 answer
  • A cyclist is riding his bike up a mountain trail. When he starts up the trail, he is going 8 m/s. As the trail gets steeper, he
    7·1 answer
  • What is it known as when a force is applied to an object for an amount of time?
    11·2 answers
  • <img src="https://tex.z-dn.net/?f=%E2%96%AA%E2%96%AA%E2%96%AA%E2%96%AA%E2%96%AA%E2%96%AA%E2%96%AA%E2%96%AA%E2%96%AA%E2%96%AA%E2%
    7·2 answers
  • if a cyclist traveled southwest a distance of 12,250 meters in 1.7 hrs what would the velocity of the cyclist be?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!