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3 years ago

At which angle do wires have to be to experience full force? What happens at other angles?

Physics

1 answer:

lisov135 [29]3 years ago

8 0

Answer:

The angle wires have to be placed to experience full force is such that the angle between the direction of current flow and the direction of the magnetic field is 90°

Explanation:

The direction of the force acting on a conductor through which a charge flows is given by Flemings Left Hand Rule which states that the direction of the force acting on a conductor carrying a current of charge is perpendicular to both the direction in which the current is flowing and the direction of the magnetic field

Therefore, wires carrying flowing charges has to be placed such that the direction of charge (current) flow is perpendicular (at 90°) to an existing magnetic field to experience (maximum) full force

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What is the input and output of a microwave?

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Microwave oven wattage input or output. Power consumption is energy consumed by the device from your home power grid. The energy output is actual power emitted by the magnetron in the form of microwaves for heating the food.

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3 years ago

Which of the following planets has the highest surface temperature as compared to the others? Earth Jupiter Mars Venus

bearhunter [10]

The answer is Venus. Being the second planet from the sun, the surface temperature on Venus (864° - 872°F) is enough to melt lead.

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3 years ago

Read 2 more answers

In each case indicate whether the quantity in question increased, decreased or stayed the same when the string length is increas

Sati [7]

Answer:

a) the number of antinodes increases , b) wavelength produced is constant.

, c) fundamental frequency is constant., d) fundamental wavelength does not change, e) the speed of the wave is constant

Explanation:

This is a resonance problem where we have a frequency generator, attached to a chain with a weight in its final part, at the two ends there is a node, point if movement. The condition for resonance of this system is

λ = 2 L / n

Where n is an integer

L = n λ / 2

Let's review the problem questions.

A) As the length of the chain increases the number of wavelengths (Lam / 2) should increase, so the number of antinodes increases

B) when seeing the first equation the wavelength remains the same since the change in the length of the chain and the change in the number between are compensated, therefore for a configuration of generator frequency and weight applied the wavelength produced is constant.

C) the speed of the wave is

v = λ f

In a string the speed is constant for a fixed applied weight, with the wavelength we did not change, therefore the fundamental frequency must also be constant.

D) The value of the fundamental wavelength does not change if the weight does not change, but there is a minimum chain length for this resonance to be observed and corresponds to n = 1

L = λ / 2

E) the speed of the wave depends on the chain tension and its density if they do not change the speed of the wave does not change either

6 0

3 years ago

To fully complete this project, you will submit the following: complete the data table with values that you determine from the v

mylen [45]

Since no data table was provided, the wave speed be calculated by taking the mean of speed values.

Also, the mathematically derived speed of sound is 343 m/s at 20 °C.

<h3>What is speed of sound in air?</h3>

Sound is an example of a mechanical wave and require a material medium for it's transmission.

The speed of sound in air has been determined to be about 343 m/s at 20 °C.

The average wave speed can be calculated using the formula:

Average wave speed = (initial speed + final speed)/2

The formula relating speed of a wave, frequency, and wavelength is given below:

Speed = wavelength × frequency.

It is important to note that in this question, no data table or video was provided.

Therefore, the wave speed be calculated by taking the mean of speed values obtained in the experiment as shown in the video.

Also, the mathematically derived speed of sound is 343 m/s at 20 °C.

Learn more about speed of waves at: brainly.com/question/2847127

#SPJ2

4 0

2 years ago

Consider two massless springs connected in parallel. Springs 1 and 2 have spring constants k1 and k2 and are connected via a thi

Varvara68 [4.7K]

Answer:

Part A : k = k₁+k₂

Part B: k = k₁+k₂+.....kₙk₃

Where for 3 springs n= 3

Explanation:

Hooke's law states that the force required to stretch a spring is directly proportional to the distance x, where k is the spring constant.

Mathematically, Hooke's law is represented as

F = kx

Where F = Force required to stretch the spring

k = spring constant

x = distance

Part A:

Since the two massless springs in Part A are connected in parallel, it means they are stretched by the same Force (F)

Therefore using Hooke's law

F = kx ......... Equation 1

Total Force is represented by F

Spring 1 , F₁= k₁x ....... Equation 2

Spring 2, F₂= k₂x ......... Equation 3

Total Force = F₁ + F₂ .......... Equation 4

We substitute k₁x for F₁ and k₂x for F₂ in equation 4

F= k₁x+k₂x ........ Equation 5

F = (k₁+k₂)x ........ Equation 6

According to Hooke's law, F = kx

We substitute kx for F in Equation 6

Hence, kx = (k₁+k₂)x ........... Equation 7

Therefore, the Effective springs constant for two massless spring connected in parallel is given as

k = k₁+k₂

3 0

3 years ago