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Questions 1. What is transistor, how does it work and where are they used? 2. Solve the following circuit to find IB, IC, IE currents and VCE, VCB Voltages. Assume the VBE voltage is 700mV. (B = 306)

Questions 1. What is transistor, how does it work and where are they used? 2. Solve the following circuit to find IB, IC, IE currents and VCE, VCB Voltages. Assume the VBE voltage is 700mV. (B = 306)

Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter30: Dc Motors
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Questions 1. What is transistor, how does it work and where are they used? 2. Solve the following circuit to find IB, IC, IE currents and VCE, VCB Voltages. Assume the VBE voltage is 700mV. (B = 306) + VCC 9V IB >RB Ic · 200ΚΩ + B V BE Rc 100Ω 2N3904 E 3. Make all simulations of the experiment 3 and add your graphs.
Transcribed Image Text:Questions 1. What is transistor, how does it work and where are they used? 2. Solve the following circuit to find IB, IC, IE currents and VCE, VCB Voltages. Assume the VBE voltage is 700mV. (B = 306) + VCC 9V IB >RB Ic · 200ΚΩ + B V BE Rc 100Ω 2N3904 E 3. Make all simulations of the experiment 3 and add your graphs.
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2.1. Aim of Experiment 2.1.1. To extract the transistor parameters. 2.2. Tools and Equipments Required DMM (Digital Multi Meter) 9 Volt Battery Resistor (1x100Ω,1x22kΩ, 1x33kΩ, 2x100kΩ, 1x1ΜΩ) Transistor (1x2N3904) 2.3. Procedure 2.3.1. Obtaining IB, IC and VBE parameters • Connect the circuit as shown below. Connect the multimeters to the circuit. • Apply 9V dc voltage to the circuit. • Keep the Rc resistor constant and change RB resistor according to the values provided in the table. Measure IB, IC currents and VCE, VBE voltages and write down to the table. +Vcc 9V IB RB + Ic B V BE Rc 100Ω 2N3904 E
Transcribed Image Text:2.1. Aim of Experiment 2.1.1. To extract the transistor parameters. 2.2. Tools and Equipments Required DMM (Digital Multi Meter) 9 Volt Battery Resistor (1x100Ω,1x22kΩ, 1x33kΩ, 2x100kΩ, 1x1ΜΩ) Transistor (1x2N3904) 2.3. Procedure 2.3.1. Obtaining IB, IC and VBE parameters • Connect the circuit as shown below. Connect the multimeters to the circuit. • Apply 9V dc voltage to the circuit. • Keep the Rc resistor constant and change RB resistor according to the values provided in the table. Measure IB, IC currents and VCE, VBE voltages and write down to the table. +Vcc 9V IB RB + Ic B V BE Rc 100Ω 2N3904 E
S.No 1 2 3 4 5 6 7 (mA) • Using the values in Table 1, draw the following graphics. 40 35 30 25 20 15 10 5 0 RB 1 ΜΩ 200 kQ (100k+100k) 100 kQ 50 ΚΩ (100k//100k) 33 ΚΩ 22 ΚΩ 10 kQ 0 Table 1 Measured values. IB Ic 20 40 Calculate the ß using Ic and le values. IB VS. Ic 60 (μA) Figure 2 B = == Alc ΔΙΒ 80 100 VCE 120 VBE 140 . . c (mA) 40 35 30 25 20 15 10 5 0 0 100 200 300 VBE VS. Ic 400 500 VBE (V) 600 2.3.2. Obtaining IB, IC and VCE parameters Connect the circuit as shown below. 700 Figure 3 Interpret this graph by comparing it with diode characteristic graph 800 900 Connect the multimeters to the circuit. Connect the 9V power supply (VBB) to the RB resistor. Connect the adjustable power supply (Vcc) to the Rc resistor. Keep the Rc resistor constant and change RB resistor according to the values provided the table. Also change Vcc adjustable power supply voltage according to the values provided in the table. Measure IB, IC currents and VCE voltage and write down to the table.
Transcribed Image Text:S.No 1 2 3 4 5 6 7 (mA) • Using the values in Table 1, draw the following graphics. 40 35 30 25 20 15 10 5 0 RB 1 ΜΩ 200 kQ (100k+100k) 100 kQ 50 ΚΩ (100k//100k) 33 ΚΩ 22 ΚΩ 10 kQ 0 Table 1 Measured values. IB Ic 20 40 Calculate the ß using Ic and le values. IB VS. Ic 60 (μA) Figure 2 B = == Alc ΔΙΒ 80 100 VCE 120 VBE 140 . . c (mA) 40 35 30 25 20 15 10 5 0 0 100 200 300 VBE VS. Ic 400 500 VBE (V) 600 2.3.2. Obtaining IB, IC and VCE parameters Connect the circuit as shown below. 700 Figure 3 Interpret this graph by comparing it with diode characteristic graph 800 900 Connect the multimeters to the circuit. Connect the 9V power supply (VBB) to the RB resistor. Connect the adjustable power supply (Vcc) to the Rc resistor. Keep the Rc resistor constant and change RB resistor according to the values provided the table. Also change Vcc adjustable power supply voltage according to the values provided in the table. Measure IB, IC currents and VCE voltage and write down to the table.
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