1 00:00:00,820 --> 00:00:10,160 Hello, I'm going to repeat the activity, this activity, the series circuit, in order to measure the voltage drop across L2 2 00:00:10,160 --> 00:00:16,679 But in this case I'm going to use the data we got in paper activity number 18 3 00:00:16,679 --> 00:00:27,640 In this activity we had a series circuit, and in this series circuit we have a 6V battery and 1, 2, 3 different lamps 4 00:00:27,640 --> 00:00:32,880 The resistance of each lamp is 10, 20 and 30 ohms 5 00:00:32,880 --> 00:00:38,859 So that is what I'm going to mount in the simulator 6 00:00:38,859 --> 00:00:47,700 So I can't use lamps here because in the simulator the resistance of each lamp is the same 7 00:00:47,700 --> 00:00:50,840 So I need to change this value 8 00:00:50,840 --> 00:00:53,399 So I'm going to use resistors 9 00:00:53,399 --> 00:01:02,159 One, two, three, and I complete the circuit by adding three wires 10 00:01:02,159 --> 00:01:05,920 The first one, the second one, the third one 11 00:01:05,920 --> 00:01:11,579 As I said, this lamp is 10 ohms 12 00:01:11,579 --> 00:01:14,180 This is 20 ohms 13 00:01:14,180 --> 00:01:17,000 And this one is 30 ohms 14 00:01:17,000 --> 00:01:21,719 The battery is a 6 volt battery 15 00:01:21,719 --> 00:01:27,719 And to measure the voltage drop I need to use the multimeter 16 00:01:27,719 --> 00:01:31,719 I use this multimeter as a voltmeter 17 00:01:31,719 --> 00:01:34,719 Here, volts 18 00:01:34,719 --> 00:01:39,719 So to measure the voltage drop across the first lamp, the first resistor 19 00:01:39,719 --> 00:01:44,719 I need to connect the probes to these two points, A and B 20 00:01:44,719 --> 00:01:51,879 And we have zero because we don't have current through the circuit 21 00:01:51,879 --> 00:01:58,420 the circuit and I close the circuit current flows through the circuit and 22 00:01:58,420 --> 00:02:06,519 now we have the voltage drop one volt let's see here in the first lamp we have 23 00:02:06,519 --> 00:02:13,879 one volt here let's see if we have two and three volts in the other lamps so 24 00:02:13,879 --> 00:02:30,199 So the voltage drop across L1 is 1 volt, across L2 is 2 volts, good, and through L3, the resistor number 3 is 3 volts, good. 25 00:02:30,199 --> 00:02:38,639 1 plus 2 plus 3 is 6 volts, the total voltage of this battery. 26 00:02:39,340 --> 00:02:40,680 And that's all. Thank you.