Question
Asked Nov 12, 2019
1 views

Suppose ε = 10.0 V , R1 = 190 Ω , and R2 = 310 Ω . (Figure 1 attached)

Please help me to conceptualize what value of R3 would be selected so the battery supplies 23.5 mA ?

                 

ww
R
help_outline

Image Transcriptionclose

ww R

fullscreen
check_circle

Expert Answer

Step 1

We know:

help_outline

Image Transcriptionclose

In the given circuit, R, and R3 are in parallel R.R 1 Therefore, the combined resistance will be, R2g R2+R 1 1 R R 310R3 310 R or.R,3 310R 190 Total resistance,Rr = R\ + R23* 310 R

fullscreen
Step 2

Then,

...
help_outline

Image Transcriptionclose

Votage Current, I Total Re sis tan ce 10 or,I 310 R 190 310 R 10 or,0.0235 58900 190R 310 R 310R3 58900 500 R 10 or 310 R3 0.0235 or,1384.15 11.75R, = 3100 +10 R R3 980.486 or

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Science

Physics

Related Physics Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: Imagine that two parallel plates are charged to achieve a voltage difference Vo between the plates. ...

A: Write the expression for capacitance between parallel plates

question_answer

Q: A tennis player tosses a tennis ball straight up and then catches it after 1.58 s at the same height...

A: Part (a):When the ball is thrown upwards the only force acting on it is force of gravitation. Thus, ...

question_answer

Q: Two point charges are fixed on the y axis: a negative point charge q1 = -25 μC at y1 = +0.17 m and a...

A:   Given:Charge on q1 = -25 µCCharge on q = 8.6 µCPosition of charge q1, y1 = 0.17 mPosition of charg...

question_answer

Q: Circle Answer

A: Click to see the answer

question_answer

Q: In Haiti, public transportation is often by taptaps, small pickup trucks with seats along the sides ...

A: Force applied on spring is,

question_answer

Q: In the figure, a small solid  uniform ball is to be shot from a point P so that it rolls  smoothly a...

A: Let v1 be the speed of the ball when it leaves the plateau, g be the acceleration due to gravity, m ...

question_answer

Q: Four point charges have the same magnitude of 2.0 × 10-12 C and are fixed to the corners of a square...

A: Consider the diagram below.

question_answer

Q: The force of a spring is given by F=−kx, where k is the stiffness of the spring and x is the displac...

A: The force of a spring is given by F,where k is the stiffness of the spring andx is the displacement ...

question_answer

Q: In the circuit shown, two identical 1.5 V batteries (with the positive or high potential ends colore...

A: Given:Current in bulb A = Iοe.m.f = 1.5 Vresistance of each bulb = 50 Ω