Base on the experiment, we can deduce that the working principle of most electric generators is based on spinning a permanent magnet near coils of wounded wire.
<h3>What is Faraday's law of electromagnetism?</h3>
Faraday's law of electromagnetism states that the negative rate of change of time (Δt) of the flux of the magnetic field (∅) through a surface is directly proportional to the flux (∅) of the electric field through a surface that has the loop as its boundary.
Electric generators are primarily designed and developed to use the properties of electromagnetism to convert kinetic energy (KE) that is possessed due to motion, into electrical energy. Thus, we can deduce that the mode of operation or working principle of most electric generators is based on spinning a permanent magnet near coils of wounded wire.
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Answer:
Answer:
r=\dfrac{1}{B}\sqrt{\dfrac{2Vm}{e}}r=
B
1
e
2Vm
Explanation:
Let m and e are the mass and charge of an electron. It is accelerated from rest through a potential difference V and are then deflected by a magnetic field that is perpendicular to their velocity. Let v is the velocity of the electron. It can be calculated as :
\dfrac{1}{2}mv^2=eV
2
1
mv
2
=eV
v=\sqrt{\dfrac{2eV}{m}}v=
m
2eV
When the electron enters the magnetic field, the centripetal force is balanced by the magnetic force as :
\dfrac{mv^2}{r}=evB
r
mv
2
=evB
r=\dfrac{mv}{eB}r=
eB
mv
or
r=\dfrac{1}{B}\sqrt{\dfrac{2Vm}{e}}r=
B
1
e
2Vm
So, the radius of the resulting electron trajectory is \dfrac{1}{B}\sqrt{\dfrac{2Vm}{e}}
B
1
e
2Vm
. Hence, this is the required solution.
The pressure exerted on the stone is
What is pressure?
- The force delivered perpendicularly to an object's surface per unit area across which that force is dispersed is known as pressure (symbol: p or P).
- A scalar quantity, pressure. It connects the normal force operating on the surface and the vector area element, which is normal to the surface. The scalar scale parameter is pressure.
- The pascal (Pa), or one newton per square meter, is the SI unit for pressure.
- A force is an effect that has the power to alter an object's motion. A motion of an object having mass to accelerate when it changes its velocity, for as when it moves away from rest. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both direction and magnitude.
Formula for pressure = Force / area
The required answer is
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Inches, feet, yards, meters
Answer:
h = 4.04 m
Explanation:
Given that,
Mass of a child, m = 25 kg
The speed of the child at the bottom of the swing is 8.9 m/s
We need to find the height in the air is the child is able to swing. Let the height is h. Using the conservation of energy such that,
Put all the values,
So, the child is able to go at a height of 4.04 m.