Common questions

What is the relation between base current collector current and emitter current?

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What is the relation between base current collector current and emitter current?

What is the relationship between the base-emitter and collector-emitter voltages of a bipolar transistor? Generally, the current that flows from the emitter to the collector or vice versa is the base current times the DC current gain (hFE).

What is the relation between current I IC and IB of emitter collector and base of BJT?

Figure 2 NPN Bipolar Transistor circuit. Note: “Ic” is the current flowing into the collector terminal, “Ib” is the current flowing into the base terminal and “Ie” is the current flowing out of the emitter terminal.

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What is the relation between IE IB and IC?

Where: “Ic” is the current flowing into the collector terminal, “Ib” is the current flowing into the base terminal and “Ie” is the current flowing out of the emitter terminal.

How is Ib and Ic calculated?

IB = IB0 exp (VBE/Vt) and IC = β IB0 exp (VBE/Vt) where Is is the saturation current that depends on the devices parameters including the base width and doping.

What is the relation between α and β?

β=1−α

How is BJT VCE calculated?

Calculate Vce using the formula Vce= Vcc – [Ie * (Rc + Re)]. Using the numbers from the previous examples, the equation works as follows: Vce = 12 – 0.00053 (3000 + 7000) = 12 – 5.3 = 6.7 volts.

How do you calculate emitter current?

Calculate the emitter current, which is the current flowing from the emitter to ground. Use the formula Ie = (Vbb – Vbe)/[Rb/(Beta + 1) + Re] where Ie is the variable for the emitter current and Vbe is the base to emitter voltage. Set Vbe to 0.7 volts, which is the standard for most transistor circuits.

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In which region IC is proportional to IB?

To neutralize the p region an electron leaves the p region. If we take it the other way round, the larger the base current the greater is the recombination, so the collector current should reduce, but Beta Ic/Ib. Ic=BetaxIb, which shows that Ib is directly proportional to Ic.

Which of the following correctly determines the relation between α and β *?

Which of the following correctly determines the relation between α and β? Explanation: α and β are related as β=α/(1-α). β = α/1-α.

Which of the following correctly determines the relation between α gain and β gain in transistor?

β=α(1−α)

How do you calculate VCE in a circuit?

What causes emitter current to be less than collector current?

When the emitter current flows into the base terminal and doesn’t perform as collector current. This current is always less than the emitter current which causes it. The gain of the common base configuration is always less than 1.

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What is the relationship between collector current and base current?

Therefore, the collector current is related to the emitter current which is in turn a function of the B-E voltage. The voltage between two terminals controls the current through the third terminal. This is the basic principle of the BJT The collector current and the base current are related by

What is the current gain of the common emitter circuit?

The current gain of the common emitter (CE) circuit is denoted with beta (β).It is the relationship between collector current and base current.The following formula is used to calculate the beta (β). Delta is used to specify a small change

What is the function of IC collector current and VCE voltage?

It is the function of IC collector current and VCE collector-emitter voltage at making IB Base current constant. Output characteristics curve can be obtained by keeping the input current IB constant and varying the output voltage VCE at different value and then record those values.