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
Goryan [66]
3 years ago
12

The circuit to the right is constructed using 9 identical batteries and 9 identical resistors. the lower left corner of the circ

uit is grounded. determine whether the current through each resistor is zero or non-zero.
Physics
1 answer:
marysya [2.9K]3 years ago
4 0
The R1, R2, R3, R5 and R6 contains current and R4, R7, R8 and R9 do not contain current. Since R8 loop voltages sources cancel VR8 + V – V = 0 so VR8 = 0. The top of R9 potential from ground is +V + V + V – V -  V = V. The bottom of R9 potentials from ground is V so VR9 = 0. The left of R7 potential from ground is +V + V – V = V. The right side of R7 potential from ground is +V + V +V – V – V = V. Therefore, VR7 = 0. From the ground the left side of R4 = +V and from the ground the right side or R4 is at V so VR4 = 0. Since we know that R1 must have 2V across it and we know that R6 and R3 each have V/2, R2 has V across it and R5 must have V across it because the potential of its left end from the ground = +V + V = 2V but the potential of its right end from the ground must be +V + V + V – V – V = V. 
You might be interested in
How much voltage is required to run 0.42 A of current through a 150
igomit [66]

The voltage in the resistor is 63 V

Explanation:

We can solve the problem by applying Ohm's law, which states the relationship between voltage, current and resistance in a resistor:

V=RI

where

V is the voltage

R is the resistance

I is the current

For the resistor in this problem, we have:

I = 0.42 A is the current

R=150 \Omega is the resistance

Substituting into the equation, we find the voltage needed:

V=(0.42)(150)=63 V

Learn more about voltage and current:

brainly.com/question/4438943

brainly.com/question/10597501

brainly.com/question/12246020

#LearnwithBrainly

4 0
3 years ago
Read 2 more answers
A uniform rod of mass M and length L is free to swing back and forth by pivoting a distance x from its center. It undergoes harm
Alisiya [41]

Answer:

The moment of inertia is 0.7500 kg-m².

Explanation:

Given that,

Mass = 2.2 kg

Distance = 0.49 m

If the length is 1.1 m

We need to calculate the moment of inertia

Using formula of moment of inertia

I=\dfrac{1}{12}ml^2+mx^2

Where, m = mass of rod

l = length of rod

x = distance from its center

Put the value into the formula

I=\dfrac{1}{12}\times2.2\times(1.1)^2+2.2\times(0.49)^2

I=0.7500\ kg-m^2

Hence, The moment of inertia is 0.7500 kg-m².

5 0
3 years ago
The hard outer covering of an animal is a
lorasvet [3.4K]
The covering on the outside of certain animals is the exoskeleton
6 0
3 years ago
the focal length of david's lens is 50 cmcm . if rebecca stands in front of david at a distance of dodo and david perceives the
lyudmila [28]

The distance of dodo is 150 cm.

<h3>What is focal length of lens?</h3>

The distance between a lens's center and its focal point is its focal length. A focal point is a location on the principal axis where, following refraction via the lens, light rays parallel to the principal axis either actually meet or appear to meet.

Given parameters:

the focal length of David's lens is: f = 50 cm.

magnification is: m = -0.50

We have to find: distance of dodo, that is, object's distance : u = ?

We know that:

u =f( 1/m -1)

⇒ u = 50(-1/0.50-1) = - 150 cm.

Hence, distance  is 150 cm.

Learn more about focal length here:

brainly.com/question/16188698

#SPJ1

5 0
1 year ago
A sample of an unknown liquid has a volume of 12.0 mL and a mass of 6 g. What is its density?
Fofino [41]
Density = Mass / Volume
6 1
3 years ago
Read 2 more answers
Other questions:
  • Suppose you have three objects of equal mass. The first object has a volume of 5 cm3 and is made of a material of density 2 g/cm
    12·2 answers
  • A Ford Mustang weighs about 3500 pounds, and can accelerate from 0-60 MPH in about 5 seconds. What force is responsible for this
    13·1 answer
  • You are designing a thin transparent reflective coating for the front surface of a sheet of glass. The index of refraction of th
    11·2 answers
  • What medium does sound travel through the quickest and why
    11·1 answer
  • 20. Threshold braking in the vehicle's braking system
    9·1 answer
  • It has been suggested that a heat engine could be developed that made use of the fact that the temperature several hundred meter
    11·1 answer
  • Question 6
    9·1 answer
  • Find the magnitude of the vector v given its initial and terminal points. Round your answer to four decimal places.
    12·1 answer
  • It costs $336.384 to run a given giant screen TV all the time for 365 days. By choosing to use your TV's power-saving feature, t
    6·1 answer
  • What is the result of increasing the speed at which a magnet moves in and
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!