Preview of practice Calculating Collector Current (30.2.1) - Common Emitter Amplifier (contd.) - Design guidelines (Part A)
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Calculating Collector Current

Practice - Calculating Collector Current

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the formula to calculate collector current (I_C)?

💡 Hint: Remember the relationship between collector and base current.

Question 2 Easy

What role do coupling capacitors play in an amplifier?

💡 Hint: Consider how different signals interact with the circuit.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the formula for calculating collector current (I_C)?

I_C = I_B / β
I_C = I_B * β
I_C = β / I_B

💡 Hint: Remember the interdependency of collector and base currents.

Question 2

True or False: Coupling capacitors are used to allow DC signal transfer in amplifiers.

True
False

💡 Hint: Consider the role of AC vs. DC in signal processing.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Design a common emitter amplifier with a target gain of 100. If V_CC is 15V, and we choose a collector resistor drop of 7V, what are the values for R_C and bias resistors?

💡 Hint: Start by calculating the necessary I_C from the desired voltage gain.

Challenge 2 Hard

Given a transistor with β = 120 and I_C = 2 mA, what is the required I_B? Additionally, determine the voltage drop across a 4.7KΩ collector resistor.

💡 Hint: Use Ohm's law and the collector current to find resistance values you're interested in.

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Reference links

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