Pressure and heat. I hope this helps
Answer:
Movement of Electrons in opposite direction of the rotation of the pickup coil leads to the direction of Electrical energy ( Alternating current ).
Explanation:
For a Generator to generate electricity, Electrons that is found in the rotating coil of the Generator will experience some sort of force that makes them to start moving in a direction that is perpendicular to the direction of the rotating/pickup coil found in the Generator.
The conversion of mechanical energy (Rotation of the pickup coil ) to electrical energy takes place in the Generator
The generator makes an alternating current because electrons move in opposite direction of the rotating coil
In other to generate a Direct current using a generator we have to replace the slip rings with commutator.
Answer:
magnitude of net magnetic field at given point is
![B = 5 \times 10^{-6} T](https://tex.z-dn.net/?f=B%20%3D%205%20%5Ctimes%2010%5E%7B-6%7D%20T)
Explanation:
As we know that magnetic field due to a long current carrying wire is given as
![B = \frac{\mu_o i}{2\pi r}](https://tex.z-dn.net/?f=B%20%3D%20%5Cfrac%7B%5Cmu_o%20i%7D%7B2%5Cpi%20r%7D)
here we we will find the magnetic field due to wire which is along x axis is given as
![i = 30 A](https://tex.z-dn.net/?f=i%20%3D%2030%20A)
r = 2 m
now we have
![B_1 = \frac{4\pi \times 10^{-7} (30)}{2\pi (2m)}](https://tex.z-dn.net/?f=B_1%20%3D%20%5Cfrac%7B4%5Cpi%20%5Ctimes%2010%5E%7B-7%7D%20%2830%29%7D%7B2%5Cpi%20%282m%29%7D)
into the plane
Now similarly magnetic field due to another wire which is perpendicular to xy plane is given as
![i = 40 A](https://tex.z-dn.net/?f=i%20%3D%2040%20A)
r = 2 m
now we have
![B_2 = \frac{4\pi \times 10^{-7} (40)}{2\pi (2m)}](https://tex.z-dn.net/?f=B_2%20%3D%20%5Cfrac%7B4%5Cpi%20%5Ctimes%2010%5E%7B-7%7D%20%2840%29%7D%7B2%5Cpi%20%282m%29%7D)
along + x direction
Since the two magnetic field is perpendicular to each other
So here net magnetic field is given as
![B = \sqrt{B_1^2 + B_2^2}](https://tex.z-dn.net/?f=B%20%3D%20%5Csqrt%7BB_1%5E2%20%2B%20B_2%5E2%7D)
![B = 5 \times 10^{-6} T](https://tex.z-dn.net/?f=B%20%3D%205%20%5Ctimes%2010%5E%7B-6%7D%20T)
The planetary wind belts in the troposphere are primarily caused by the Earth's rotation and the unequal heating of Earth's surface.
Planetary wind belts are vast movements and they are driven by the circulation of air. The Sun's heat causes the winds around the world. It heats the tropical zone primarily than the polar regions because the sun's rays are more direct at the equator.
A) From rest and before performing the described exercise, the entire weight of the desk is supported by the floor. This support force (normal force) exerted by the floor will be equivalent to the force equivalent to the weight of the desk. From the moment the desk starts to be lifted, said support force will decrease and the weight of the desk supported by the floor will be less.
B) As the desk is lifted, the support force of the two guests will increase, this occurs because the force is transferred to the support of both, but the support force of the floor on the two people will increase.