Voc 12v R1 1k R2 Vout Vcr 10k Q1 2n3904 Vin Figure 6 Bjt As A Switch Procedures A Connect The Circuit In Figure 6 1 (38.54 KiB) Viewed 33 times
Voc 12v R1 1k R2 Vout Vcr 10k Q1 2n3904 Vin Figure 6 Bjt As A Switch Procedures A Connect The Circuit In Figure 6 2 (42.07 KiB) Viewed 33 times
Voc 12v R1 1k R2 -Vout VCR € 10k Q1 2N3904 Vin Figure 6: BJT as a Switch Procedures: (a) Connect the circuit in Figure 6 with Vec set to 12V (from DC Supply) (b) Connect another DC supply Vinto the input and set it to 5V. (c) Vary the supply Vin and record the measurements in Table 2 using a multi-meters. Tip: Connect the multi-meter for measuring current in the circuit and do not remove while measuring other values. Use another multi-meter to measure voltages.
A VCE Ic Observations & Results: 1. Record your measurements in Table 2. VIN Vout VBE 5V 4V 3V 2v 1V 0.5 0 Table 2 2. Plot Ic (y-axis) against Vce (x-axis) using the tabulated values. What does this plot represent? (Hint: Refer to overview) 3. From the table 2 at which Vin values do the circuit represents a switch "OFF" and "ON" position. Complete the table below and state the respective operating region of the transistor for the switch. VIN Switch Operating region "ON" "OFF" 4. Explain how the BJT functions as a switch based on your observation in the experiment
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