Knowee
Questions
Features
Study Tools

Consider this circuit and calculate the desired currents using exact analysis. β = 100

Question

Consider this circuit and calculate the desired currents using exact analysis.

Given:
β = 100

🧐 Not the exact question you are looking for?Go ask a question

Solution

To solve for the desired currents in the circuit using exact analysis, we need to follow a structured approach. Although I don't have the image of the circuit in question, I can guide you through the general steps for analyzing a circuit with a transistor, assuming a common configuration.

1. Break Down the Problem

  1. Identify the components in the circuit (transistor, resistors, power supplies, etc.).
  2. Establish input parameters such as the power supply voltage (Vcc), resistor values (R1, R2, Rc, Re), and the transistor’s characteristics, including β (current gain).
  3. Define the nodes in the circuit for analysis (base, collector, emitter).
  4. Determine the desired currents: base current (Ib), collector current (Ic), and emitter current (Ie).

2. Relevant Concepts

  1. Ohm's Law: V=I×R V = I \times R
  2. Current Relationships in a Transistor:
    • IC=β×IB I_C = \beta \times I_B
    • IE=IB+IC I_E = I_B + I_C
  3. Voltage Divider Rule for biasing resistors if applicable.

3. Analysis and Detail

  1. Calculate Base Current (Ib):

    • Use the voltage divider to find the base voltage: VB=Vcc×R2R1+R2 V_B = V_{cc} \times \frac{R_2}{R_1 + R_2}
    • Combine this with the base-emitter voltage drop (typically VBE0.7V V_{BE} \approx 0.7 \, V ): IB=VBVBERB I_B = \frac{V_B - V_{BE}}{R_B} where RB R_B is the resistance seen at the base.
  2. Calculate Collector Current (Ic):

    • Using the relationship: IC=β×IB I_C = \beta \times I_B
  3. Calculate Emitter Current (Ie):

    • From collector and base currents: IE=IB+IC I_E = I_B + I_C

4. Verify and Summarize

  • Ensure that the calculated values conform to the transistor operation regions (active region).
  • Perform a check on the KCL or KVL presumptions to validate current continuity.

Final Answer

  1. Calculate IB I_B , IC I_C , and IE I_E based on the parameters provided in the circuit. For specific numerical values, substitute the known values into the formulas.
  2. The final results will be:
    • IB=calculated value I_B = \text{calculated value}
    • IC=calculated value I_C = \text{calculated value}
    • IE=calculated value I_E = \text{calculated value}

Please provide the circuit diagram or specific component values for a more precise calculation.

This problem has been solved

Similar Questions

In common emitter BJT (npn) configuration if IB = 1mA , β = 100 . find emitter current

Using approximate analysis, calculate the value of IC and VCE.  Consider the second approximation for the diodes. β = 100.

The value of R is adjusted until the current in the circuit is 2 mA. Calculate the resistance of the variable resistance under this condition.

A 10-ohm resistor has a constant current. If 1200 C of charge flow through it in 4 minutes whatis the value of the current?A. 3.0 AB. 5.0 AC. 11 AD. 15 AE. 20 A

In the circuit shown in Fig. XC = 100 , XL =200 and R = 100 . The effective currentthrough the source is

1/1

Upgrade your grade with Knowee

Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.