Because static electricity build up in our homes because we have the heaters on which suck moisture out of the air.
Answer:
Connect multiple hosts: Normally, a switch provides a large number of ports for cable connections, allowing for star topology routing. It is usually used to connect multiple PCs to the network.
Forwards a message to a specific host: Like a bridge, a switch uses the same forwarding or filtering logic on each port. When any host on the network or a switch sends a message to another host on the same network or the same switch, the switch receives and decodes the frames to read the physical (MAC) address portion of the message.
Manage traffic: A switch in networking can manage traffic either coming into or exiting the network and can connect devices like computers and access points with ease.
Keep electrical signal undistorted: When a switch forwards a frame, it regenerates an undistorted square electrical signal.
Increase LAN bandwidth: A switch divides a LAN into multiple collision domains with independent broadband, thus greatly increasing the bandwidth of the LAN.
Explanation:
So we want to know what will happen if we put a magnetically soft material in a strong magnetic field. A magnetically soft material is a material whose magnetic field can easily be reversed. Those are ferromagnetic materials. Iron is such a material. When a magnetically soft material is placed into a strong magnetic field it gets its own magnetic field. But its not a permanent magnetic field, it can be changed by a different strong magnetic field.
Answer:
16
Explanation:
Mechanical advantage = force out / force in
MA = 2000 N / 125 N
MA = 16
Answer:
(a) 40.6 degree
Explanation:
When refraction takes place from slab to water, the critical angle is 60 degree.
Use Snell's law
refractive index of water with respect to slab
![\mu _{w}^{s}=\frac{Sin60}{Sin90}](https://tex.z-dn.net/?f=%5Cmu%20_%7Bw%7D%5E%7Bs%7D%3D%5Cfrac%7BSin60%7D%7BSin90%7D)
![\frac{\mu _{w}}{\mu _{s}}=0.866](https://tex.z-dn.net/?f=%5Cfrac%7B%5Cmu%20_%7Bw%7D%7D%7B%5Cmu%20_%7Bs%7D%7D%3D0.866)
![\frac{1.33}{\mu _{s}}=0.866](https://tex.z-dn.net/?f=%5Cfrac%7B1.33%7D%7B%5Cmu%20_%7Bs%7D%7D%3D0.866)
μs = 1.536
Now for slab air interface, the critical angle is C.
![\mu _{a}^{s}=\frac{SinC}{Sin90}](https://tex.z-dn.net/?f=%5Cmu%20_%7Ba%7D%5E%7Bs%7D%3D%5Cfrac%7BSinC%7D%7BSin90%7D)
![\frac{\mu _{a}}{\mu _{s}}=\frac{SinC}{Sin90}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Cmu%20_%7Ba%7D%7D%7B%5Cmu%20_%7Bs%7D%7D%3D%5Cfrac%7BSinC%7D%7BSin90%7D)
1 / 1.536 = Sin C
C = 40.6 degree