The potential barrier in the depletion region is due to ions.
<u>Explanation:</u>
A pn junction diode forms a depletion region or layer when the charge carriers of the respective sides gets away from their diffusion region. For example, say the p-sides in diode has holes as charge carriers and n-sides in diode has electrons as charge carriers.
So when current passes via the diode, at one point, the charge carriers will be drifted away from the diffusion region and their corresponding ionized minority carriers will be forming a layer. This layer will be resisting the flow of current and is termed as depletion region.
So the potential barrier is the potential difference required to diffuse these ionized electrons from one side to another. Thus, the potential barrier at the depletion regions is due to ions.
Electrical energy is used to run the fan
Here as per given condition 750 J of electrical energy is used to run the fan which is converted into Kinetic energy as 400 J
So here we can see that 350 J of energy is lost against many other type of frictional and resistive loses.
So here we can say that out of 750 J of energy only 400 J is used to run the fan and rest amount of energy is lost against friction.
also we can say that efficiency of this fan will be
Answer:
Explanation:
Mass of the boy, m = 62 kg
Mass of the girl, m' = 46 kg
The acceleration of the girl toward the boy is,
The force acting on the girl is given by :
F' = 138 N
Let a is the magnitude of the acceleration of the boy toward the girl. Again using the second law of motion to find it as :
So, the the acceleration of the boy toward the girl is .
25m and also 25m because if you divide 100 by 4 you get 25 and divide 50 by 2 you also get 25