 Dear learners, let us now again move into one of the most important apparatus of electronics that is called the dual power supply. What is a dual power supply? There is a name such as dual means two. At the time you can supply two various voltages from the same device. How? Let us on the same device. When I am owning this device, you can see there is a panel which is leading up some digits. Here at one panel, there are two panels. This is one supply, this is the other supply. How can we get the supply from here? First, if you want to suppose get a supply of 5 volts from this channel, you have seen this norm when you move it, the voltage changes. So, you can give a maximum voltage of up to what is written here? 30 volts. So, if I maximum that I can give is 30.5, this small calibration. So, maximum you can suppose is a 30 volts that we can get from the supply. So, suppose I want to give you a voltage of 10.5. So, when I move this means from this two plus and minus 10 volts will become 10.5 volts will become. This is giving this channel. This is one means this is more one. When I press this, now this is showing the value that this supply is given. As I said dual supply, this is one, this is second. This forms a dual. When I press this, this shows the value which is given by this supply. When I press this, shows the value which is given by this supply. Suppose I want to give second supply of 5 volts. Now, how to take this supply from this to the circuits? We have a power supply problem. You simply have to insert this problem here and the next problem here. So, we have these two points. One is positive, one is negative, positive and negative giving a supply from this dual power. So, this is giving one supply of how much voltage? This is one. So, this will be here 10.5 and second one giving means this is giving a 5 per month. So, similar kind of product can be used and can be inserted over here. So, means now this products are giving a value of 5 volts. This is how a dual power supply works. You can at a time give two voltages from this device. Thank you.