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
Sladkaya [172]
3 years ago
14

18. A circuit contains a 10 ohm resistor, a 50 ohm resistor, and an 80 ohm resistor connected in parallel. If you test this circ

uit with a DMM, you should read a total resistance value
A. 0.13 ohms
B. 75 ohms
C. 140 ohms
D. 7.55 ohms
Physics
1 answer:
lutik1710 [3]3 years ago
4 0

The equivalent resistance is D) 7.55 \Omega

Explanation:

The equivalent resistance of n resistors in parallel is given by the equation:

\frac{1}{R}=\frac{1}{R_1}+\frac{1}{R_2}+...+\frac{1}{R_n}

For three resistors such as in this problem, the equation becomes

\frac{1}{R}=\frac{1}{R_1}+\frac{1}{R_2}+\frac{1}{R_3}

where we have the following:

R_1 = 10 \Omega is the resistance of the 1st resistor

R_2 = 50 \Omega is the resistance of the 2nd resistor

R_3 = 80 \Omega is the resistance of the 3rd resistor

Substituting, we find the equivalent resistance:

\frac{1}{R}=\frac{1}{10}+\frac{1}{50}+\frac{1}{80}=0.133 \Omega^{-1}

R=\frac{1}{0.133}=7.55 \Omega

Learn more about resistance:

brainly.com/question/2364338

brainly.com/question/12246020

#LearnwithBrainly

You might be interested in
9
Rudik [331]

Answer:

6

Explanation:

cause logic

8 0
3 years ago
An object is projected with initial speed v0 from the edge of the roof of a building that has height H. The initial velocity of
Vsevolod [243]

Answer:

Explanation:

Initial velocity u = V₀ in upward direction so it will be negative

u = - V₀

Displacement s = H . It is downwards so it will be positive

Acceleration = g ( positive as it is also downwards )

Using the formula

v² = u² + 2 g s

v² = (- V₀ )² + 2 g H

= V₀² + 2 g H .

v = √ ( V₀² + 2 g H )

6 0
3 years ago
I'm pretty sure it's density but I need another opinion.
bixtya [17]
I agree with density
6 0
3 years ago
Read 2 more answers
An open system starts with 52 J of mechanical energy. The energy changes
spayn [35]

Answer:

I think the answer is D,54 joules

5 0
2 years ago
suppose you use three different scales to weigh bag of oranges one scale says the bag weighs 2.1 lbs a second says it weighs 2.2
Ber [7]

Answer:

It would be 2.2 if you have to round the five to the one but if your not rounding the number, it'd be 2.1.

Explanation:

4 0
3 years ago
Other questions:
  • How did the old view of the solar system look like
    9·1 answer
  • Which image shows both potential and kinetic energy
    5·2 answers
  • these questions confuse me. i think I know the answer but I'm not sure. this is density/hydraulic devices. help?
    9·2 answers
  • How is high speed internet transmitted around the world?
    15·1 answer
  • What would be the mass of an object that has a force of 88N and an acceleration of 12 m/s2?
    12·1 answer
  • LPG is a better domestic fuel than wood?​
    13·1 answer
  • Which one is it? Chemical, or ,Mechanical<br><br><br> Flakes of brick fall off due to wind and rain.
    5·2 answers
  • A sample is brought to the laboratory and it is determined that one-eighth of the original
    12·1 answer
  • Which is not an example of unbalanced force acting on an object
    6·1 answer
  • if a certain star emits most intensely in the visible region of the spectrum, a cooler star would emit mostly in what part of th
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!