Digital Multimeter

1.  Confirm voltage divider theory practice.

I connected a 470 ohms and 10k ohms resistor and I got a reading of 5.68V.
The total volts was 6V.










2. Connect Ammeter and state current R(tot) = V(0)/I



1.47Kohms = 6/0.1



 

Power and Current


1 Watt is 1 Joule
I = V/R

P = VI

1. What is the current through a 60W bulb?
    
    60 = 230 * I
    I = 6/23A


   
 

Lesson 1

1. What are the voltages?

a) V1 = 10/110 *9= 9/11

    V2 = 100/110 * 9= 90/11

b) V1 = 30/66 * 10 = 100/33

    V2 = 36/66 * 10 = 60/11

c)  V1 = 2/9 * 10 = 10/9

     V2 = 3/9 * 10 = 10/3

      V3 = 4/9 * 10 = 40/9