Objectives:
Alternating current supplies may be obtained for electromagnetical generators or from oscillators or signal generators. All AC waveforms are either sinusoidal or combinations of sinusoidal waves.
The objectives of this experiment are to determine the RMS value of an Ac voltage, the average value of an AC voltage and to measure phase displacement.
Equipment list:
1. 600mH Inductor
2. Oscilloscope with x1 Probe
3. 120/25V Multi-tap Transformer
4. Digital Multimeter
5. Identical 32V 30W lamps on a lamp board
6. Dual D.C. Power supply (output > = 5000mA)
7. Protoboard and component kit
8. Decade resistor box
9. 1AMP diode (1N4001 or !n4004)
Procedures:
PART I – THE EFFECTIVE VALUE OF A.C.VOLTAGE
l. We connect the apparatus as shown in Figure 1 and adjust the D.C. power until the A.C. powered lamp has the same brightness as the D.C. lamp.
2. Using the oscilloscope (with channel coupling selector......
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