The power supply, changing the values of the voltage we set it on the DMM and the resistors, which had taken new values and found the difference between them (table4.1). The DMM’s internal measured resistance of each current scale is measured (table3.2). The DMM’s internal measured resistance of each dc voltage scale is measured (table3.1). The same thing is doing with the VOM (table2.1) The difference between the normal resistor value and the measured value is finding. The measure from the two resistors is taken. Minimum value= resistor nominal value – tolerance X resistor nominal valueĭMM and resistor are connected with wires. Maximum value= resistor nominal value + tolerance X resistor nominal value The minimum and the maximum resistance are finding by using the following equation (table 1.2). The resistance value of 1KΩ and 10 KΩ resistors identified using the color code (table 1.1). Analog Multimeter (Brand: HAMEG, Model: HM 203-6, Serial Number: 46/87 Z33418).Digital Multimeter (Brand: Good Will Instruments Co.Power supplies gives a source of power, rated as maximum voltage and current output.The color code is described in a listing of the numerical value associated with each color.The DMM read resistance, voltage and current with a digital display.

The VOM employs an analog scale to read resistance, voltage and current.In the experiments will be used the VOM, DMM, the color code and power supply to measure the resistance of the provided resistors. Become familiar with the dc power supply and setting the output voltage.Make the student knowing about how important internal resistance of a voltmeter and ammeter is.To get knowledge of read and use the resistor color code.Make the student familiar with the digital and analog ohmmeter.

47 ohm resistor color code