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Semiconductor Resistance Levels Quiz

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Questions and Answers

What defines the average of the ac values from 2 mA to 17 mA?

Table 1.6
Equation (1.6)
Equation (1.7) (correct)
Equation (1.8)

If the ac resistance (rd) were determined at ID = 2 mA, what would its value be?

More than 5 D (correct)
Exactly 5 D
Less than 5 D
Cannot be determined from the information given

What does the fact that one resistance level can be used for a wide range of characteristics prove?

The usefulness of equivalent circuits for a diode (correct)
The irrelevance of resistance levels
The inconsistency in resistance calculations
The complexity of diode circuits

What is the lower level of currents used to determine the average resistance?

$2 mA$ (D) Signup and view all the answers

What does Equation (1.8) determine?

The average ac resistance between indicated limits (B) Signup and view all the answers

What is the value of Lild when ID = 17 mA and ID = 2 mA?

$15 mA$ (D) Signup and view all the answers

What transition does the ac resistance make between 2 mA and 17 mA?

From high to low (D) Signup and view all the answers

What is the purpose of Summary Table Table 1.6?

To emphasize differences among various resistance levels (A) Signup and view all the answers

What is considered the foundation for a number of resistance calculations in later sections and chapters?

$r_{av}$ defined by Equation (1.7) (A) Signup and view all the answers

What does Equation (1.7) define a value for?

Average of ac values from 2mA to 17mA (C) Signup and view all the answers

What is the forward voltage (Vp) of the diode when the forward current (IF) is 200mA?

0.94 V (C) Signup and view all the answers

What is the reverse current (Ir) of the diode when the reverse voltage (VR) is 35V?

0.5 µA (A) Signup and view all the answers

What does the diode's breakdown voltage (BV) indicate?

The voltage at which the diode breaks down and conducts a significant current (A) Signup and view all the answers

What does the term 'reverse recovery time' refer to in relation to a diode?

The time taken for the diode to switch from conducting in the reverse direction to conducting in the forward direction (B) Signup and view all the answers

At what frequency is the reverse recovery time of the diode tested?

1.0MHz (A) Signup and view all the answers

What is the maximum reverse voltage (VR) at which the capacitance (Ct) of the diode is measured?

20V (C) Signup and view all the answers

What test condition is specified for measuring the capacitance (Ct) of the diode?

IF = 10mA, VR = 35V (D) Signup and view all the answers