Objective 1. Properly wire an electrical circuit on a breadboard from a schematic. Properly measure: Resistance Current Voltage + 10 V Procedure 1. Before constructing the circuit, measure and record the value of each resistor: R1 R2 330 470 R1 = Ω R2 = Ω R3 = 220 Ω R3 R1 = Orange, Orange, Brown, Gold 330 R2 = Yellow, Violet, Brown, Gold 70 R3 = Red, Red, Brown, Gold %3! %3D %3D 220 2. Construct the circuit above on a breadboard. Circuit correct: init 3. Adjust the supply voltage to +10 V Dc within +/- .1V initial 4. Measure and record the voltage drop of R1: V R2: R3: V 5. Measure and record the current through R1: mA R2: mA R3: mA

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Electrical Heating Unit

The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechanism in electric heating systems, which transforms electric current to heat. Electric heaters have heating elements in the form of electric resistors.