Diodes and Applications MCQs

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Practice free Diodes and Applications multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 50 questions — no login required.

Question 1easy
What is a varistor?
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Question 2easy
Which type of transformer is required to create a 180 degree input to a rectifier?
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Question 3easy
What circuit activity may shift a characteristic curve so that diode operating points are different?
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Question 4easy
The dc current through each diode in a bridge rectifier equals:
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Question 5easy
When matching polarity connections have been made and the potential difference (PD) is above 0.7 V, the diode is considered to be:
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Question 6easy
In a power supply diagram, which block indicates a smooth dc output?
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Question 7easy
If a 169.7 V half-wave peak has an average voltage of 54 V, what is the average of two full-wave peaks?
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Question 8easy
The characteristic curve for the complex model of a silicon diode shows that
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Question 9easy
Since diodes are destroyed by excessive current, circuits must have:
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