nantan a time what we're doing today is gonna find the voltage and the frequency in the period and the voltage in RMS and blah blah blah all four resistances let's look at that right now here we got resisted to 330 ohm resistor already got her I still the scope hooked up we got our multimeter so let's start with the basics everybody knows how to use our multimeter by now if you probably like more than halfway in the semester so what we're gonna do is we're just gonna click on our multimeter and we do have a value here but let's say we didn't know what the value is let's switch it back to ohms we're gonna turn on the simulation here so now it's given you an output that's always changing keep in mind that this is a current so it's going up and down it's always gonna be changing so let's switch this over it's a voltage because that's what we want to find now we're gonna switch it to a wave being that it's a sinusoidal wave not a linear line that's gonna give you a clear value of one point two seventy five volts alright let's go ahead over into the oscilloscope this is Big Mama will be here so you see this lines you like what's going on well the wave is running because current is flowing through so let's go ahead and turn off the simulation and back over here to the beginning all the way to the beginning and so now we have our two leads over here or little triangle things to help you find some points on the wave so let's head one over you're gonna start heading them over with the WiMAX so let's first find the period so all right actually let's go at peak all right so peak you gonna want to go to the next minimum because keep in mind peak is min to max so it's all within one wave so now we're gonna head over to this one head that over to the next maximum point but we're not looking for resistor two right now we're looking at resistor one which is channel a so we have to switch this over its chance now you do that right click it select the trace traces on channel a which is the blue line now switch it over to channel B the red line once you click OK switches to red switches to the red so now we have our voltage peak to peak you're not going to look over here for time you're not gonna look over in the channel are you gonna look at the channel B very last value because T 2 minus T 1 is peak to peak so that gives you a value of negative three point six zero five now we have to me why is this negative you see C's in front of the one in actuality should be the one in front of the two because one is leading the two this way so what we have moved the one to the beginning and switched it with the two everything would have been fine all right so our peak to peak value is positive three point six zero five now let's go ahead and find the period period is gonna be the highest point to the next highest point kind of like a wavelength but it's defined so now we have our highest point in this way the highest point in this way and now that's gonna give you keep in mind period is a value of time one point zero milliseconds all right so now we have our period one point zero milliseconds across T 2 and T 1 let's go find the frequency frequency is calculated by the inverse of your period so one point zero milliseconds you would actually be taking one divided by one millisecond keep in mind that one millisecond is an engineering notation so let's do some math let me unlock my phone real quick all right let's look back over here so as we've seen over here one millisecond you simply times it by the negative third scientific notation so 1 times 10 to the negative third would actually be point zero zero one now we want to find the inverse of point zero zero one which would be one divided by point zero zero one so let's clear that up one divided by point zero zero one equals one thousand or an engineering notation one Hertz keep in mind this is frequency one kilohertz so this is why we find this value over here now we Anthony why is the killer it's the same over here as it was four over here well that's because frequency is measuring the wavelength over time the period over time it's not actually interfering with the voltage or anything so when we find frequency it's gonna be the same across each resistor all right