Alternating Current
el nino
Mesh current is introduced just as an imaginary quantity it flows around a mesh and all branch currents do not change for introducing mesh currents so all branch currents can be represented by mesh currents.
in any dc machine changing the polarity of the field will change its direction. here, in series motor, the field is in series with the armature, to which we feed the supply. hence, change the feeding polarity.
The answer to that question is entirely dependent on the motor. Many motors have an access plate where the power feeds into the motor. Removing that plate often reveals a wiring diagram that shows how to change the wiring to reverse the motor direction. But most AC electric motors do not provide the option of reversing direction.
DC motor: Switch your leads. AC single phase motor: Direction cannot be changed. The motor will run the same direction regardless of how your leads are terminated. AC 3 phase motor: Switch any two leads.
An oceans currents will change direction when they hit a continent.
sonomons
el nino
We know that ocean currents change direction when meeting a continent. The water must flow around the land, so it has to change direction to do that.
Currents change direction due to factors such as wind patterns, temperature variations, tides, and the rotation of the Earth, known as the Coriolis effect. These factors can influence the movement of water masses, leading to shifts in current direction.
Convection currents move in upward direction
rapid tempature change is the main characteristic that effects deep ocean currents.
Continents can affect surface currents by causing them to deflect due to the Coriolis effect. This effect is caused by Earth's rotation and causes surface currents to change direction as they flow around land masses. The shape and location of continents can also influence the direction and strength of surface currents by creating barriers or channels for the flow of ocean water.
Large land areas can disrupt the flow of surface currents due to the friction they create with the water. As the water encounters the landmass, it is forced to change direction or split into different currents to navigate around the obstacle. This can lead to the redirection of surface currents along the coastline or the formation of eddies and gyres.
wind.Surface currants form by global winds, Coriolis effect (earth's rotation) and continental deflections (surface currents meet continents they change direction).
wind.Surface currants form by global winds, Coriolis effect (earth's rotation) and continental deflections (surface currents meet continents they change direction).
The surface currents move in a clockwise direction in the Northern hemisphere, and move in a counter clockwise direction in the Southern hemisphere! Hope it helped:)