THE MAGAZINE FOR COMPUTER APPLICATIONS
Circuit Cellar Online offers articles illustrating creative solutions
and unique applications through complete projects, practical
tutorials, and useful design techniques.

WHAT'S YOUR ENGINEERING QUOTIENT?

Problem 1—What is the difference between the declaration and the definition of a symbol?

ANSWER

Problem 2—Prove that the following circuit works as a logarithmic amplifier:

ANSWER

Problem 3—Explain what "storage time" is in transistors.

ANSWER

Problem 4—Draw the schematic of a 2-input CMOS NAND gate and explain its working.

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Problem 5—What is a math coprocessor? How does it improve the overall speed of a system when used along with a microprocessor?

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Problem 6—Write a macro for the C preprocessor to find the number of elements in a array.

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Problem 7—Why is the above macro an example of poor software engineering?

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Problem 8—Voltage measurements of the following circuit indicate that V_E = –1.0 V and V_BE = 0.7 V.

What are the values of I_B, V_C, a and b?

ANSWER

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