Practice Bias Circuit With Current Mirrors (88.4.2) - Numerical examples on current mirror and its applications (Part-C)

Practice: Bias Circuit with Current Mirrors

Lesson 88.4.2Numerical examples on current mirror and its applications (Part-C)

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10 questions

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6 sample questions

Question 1.
What is a current mirror used for?
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Think about their function in biasing.
Question 2.
Calculate the base current if the collector current is 2 mA and β is 100.
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Use the formula I_B = I_C / β.
3Question 3.
What is the primary function of a current mirror?
- To increase voltage
- To replicate current
- To store energy
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Think about what 'mirror' means.
4Question 4.
True or False: A higher Early voltage is better for consistent current in a mirror.
- True
- False
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Consider the importance of stability.
Question 5.
Design a bias circuit using current mirrors for an amplifier with a desired collector current of 10 mA. Calculate the necessary bias resistors and discuss the implications of Early voltage.
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Remember to apply Ohm's Law and account for all currents.
Question 6.
Evaluate how varying the supply voltage affects the collector current in a common emitter amplifier using current mirrors.
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Consider the relationship between voltage and current in circuit theory.

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