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
Olegator [25]
3 years ago
8

When there is a large difference in two resistor’s sizes, what useful approximations can be used when considering their series a

nd parallel combinations? (This is a handy thing to know in circuit design!)
Physics
1 answer:
denis-greek [22]3 years ago
5 0

Answer:

Series circuit approximation = R1 >> R2 then R2 ≈ 0

Parallel circuit approximation = R1 << R2 then R2 ≈ 0

Explanation:

in a series circuit, if there is a large difference between two resistors then we can omit the resistor which has low resistance because the higher value resistor dominates.

R1 >> R2 then R2 ≈ 0

in a parallel circuit, if there is a large difference between two resistors then we can omit the resistor which has high resistance because the lower value resistor dominates.

R1 << R2 then R2 ≈ 0

You might be interested in
If a seagull drops a shell from rest at a height of 12 m how fast is the shell moving when it hits the rocks
Dvinal [7]

As seagull drops a shell from rest at a height of 12 m, so we use kinematic equation of motion,

v^{2} = u^{2} +2g h

Here, h is the height, u is initial velocity , v is final velocity and g is acceleration due to gravity.

Given,  h = 12 m.

We take, g = 9.8 \ m/s^2 and u = 0 because seagull drops a  shell from rest.

Therefore, the speed of shell when it hits the rocks,

v^{2} = 0 + 2 \times 9.8 m/s^2 \times 12 \ m = 235.2 (m/s)^2 \\\\ v = \sqrt{235.2 (m/s)^2} = 15.33 \ m/s^2

5 0
3 years ago
Which of these are types of meteorites? Select all that apply.
love history [14]

The types of meteorites are iron, stone and iron-stony meteorites. The stony-iron meteorites account for less than 2% of all known meteorites. They comprised of roughly equal amounts of nickel-iron and stone and are divided into two groups: pallasites and mesosiderites. The answers are only B and C

8 0
3 years ago
What is the mass of an object that is 6kg on a planet with an acceleration due to gravity
goldfiish [28.3K]

Answer:

Mass of the body will be = 6 kg

Explanation:

Given:

Mass of an object = 6 kg

Acceleration due to gravity of the planet = 10 m/s^2

To find the mass of the body on that planet.

Solution:

Mass of the body is defined as the total amount of matter contained in the body.

Thus, mass of a body will always remain constant irrespective of the acceleration due to gravity. This is because it is an independent quantity and does not vary with acceleration due to gravity.

<em>It is the weight of the body that changes with the change in the acceleration due to gravity as it is given by:</em>

W=mg

where m represents mass of the body and g represents the accelration due to gravity.

Hence, the mass of the given body will remain = 6 kg.

6 0
3 years ago
A solenoid of length 0.250 m and radius 0.0250 m is comprised of 440 turns of wire. Determine the magnitude of the magnetic fiel
Bad White [126]

Answer: 0.02654

Explanation:

in the attachment

6 0
4 years ago
Read 2 more answers
What is Newton's Law
r-ruslan [8.4K]
I hope you are referring to Newton's Laws of Motion by "Newton's Law".

There are three laws quoted by the great physicist of all time Sir Isaac Newton.

These laws are the building-blocks of the field of the Physics known as Classical Physics or Classical Mechanics.

Law 1. If no force applied externally, then a body in rest will always be in rest and a body in motion will continue to move in a straight line with a uniform velocity.

Law 2. The rate of change of momentum is directly proportional to the force applied and the direction of motion is always in the direction of the force applied.

Law 3. Every action has an equal and opposite reaction.

The Law 1 is also called the law of Inertia.

From the 2nd law, we can derive the equation of force, that is F =m.a (m = mass; a = acceleration)
5 0
4 years ago
Other questions:
  • A karate expert breaks a stack of bricks with his bare hand. If the force applied is 520 newtons and the impact time is 5.0 × 10
    13·2 answers
  • A charge per unit length given by l(x) = bx, where b = 12 nc/m2, is distributed along the x axis from x = +9.0 cm to x = +16 cm.
    9·1 answer
  • What was the West to many Americans during the turn of the 19th century?​
    6·1 answer
  • Adding bleach to red food coloring causes the food coloring to lose its color. Is this a physical or chemical change? Explain.
    5·2 answers
  • Whose ideas did Charles Coulomb compare electric forces to?
    14·1 answer
  • Which one will it be
    12·1 answer
  • Question 1
    8·2 answers
  • Arrange this letters plss lubilsoity​
    5·1 answer
  • This is the question I need help with
    11·1 answer
  • a placekicker must kick a football from a point 36.0 m (about 40 yards) from the goal. half the crowd hopes the ball will clear
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!