Answer:
O Transformer
Explanation:
A transformer is a device for increasing or decreasing voltage through electromagnetic induction. It is very used in power transmission where alternating currents can be stepped up or down for house hold usage.
- Electromagnetic induction is the process of generating current through magnetic fields.
- It is made up of primary and secondary coils which helps to change voltage in the presence of magnetic filed at the core.
- A transformer can either be a step up or step down device.
Answer:
Explanation:
It is given that,
The radius of the solid sphere, R = 50 cm = 0.5 m
Charge on the sphere, ![q=40\ \mu C=40\times 10^{-6}\ C](https://tex.z-dn.net/?f=q%3D40%5C%20%5Cmu%20C%3D40%5Ctimes%2010%5E%7B-6%7D%5C%20C)
We need to find the magnitude of the electric field r = 10.0 cm away from the center of the sphere. The electric field at point r away form the center of the sphere is given by :
![E=\dfrac{kqr}{R^3}](https://tex.z-dn.net/?f=E%3D%5Cdfrac%7Bkqr%7D%7BR%5E3%7D)
![E=\dfrac{9\times 10^9\times 40\times 10^{-6}\times 0.1}{0.5^3}](https://tex.z-dn.net/?f=E%3D%5Cdfrac%7B9%5Ctimes%2010%5E9%5Ctimes%2040%5Ctimes%2010%5E%7B-6%7D%5Ctimes%200.1%7D%7B0.5%5E3%7D)
![E=2.88\times 10^5\ N/C](https://tex.z-dn.net/?f=E%3D2.88%5Ctimes%2010%5E5%5C%20N%2FC)
So, the electric field 10.0 cm away from the center of the sphere is
. Hence, this is the required solution.
Comets are divided into two types. Long-period comets are the comets that take more than two hundred years to finish an orbit throughout the Sun originate from the Oort Cloud.
<u>Explanation:</u>
- The Oort Cloud has sufficient distance apart of the Sun than the Kuiper Belt, it seems that the Oort Cloud objects were made closer to the Sun than the Kuiper Belt things.
- Long-period comets have highly eccentric orbits.
- The Oort cloud is considered to own a large range commencing from among 2,000 and 5,000 AU to 50,000 AU.
- The chemical makeup of long-period and short-period comets is quite alike.
Once the virus gets into the host's body, it enters the nearest cell.Once it gets to the nucleus it turns that cell into a virus-production cell and once the immune system detects those viruses it takes action.