Question 1

When an accurate analysis of a diode circuit is required,

Accepted Answer

A)  the value of the bulk resistance of the diode is necessary. 
B)  the value of maximum power dissipation of the diode is necessary. 
C)  the value of the depletion layer resistance of the diode is necessary. 
D)  the value of maximum reverse current of the diode is necessary. 
A)  the value of the bulk resistance of the diode is necessary. 
B)  the value of maximum power dissipation of the diode is necessary. 
C)  the value of the depletion layer resistance of the diode is necessary. 
D)  the value of maximum reverse current of the diode is necessary. A

Question 2

The maximum forward current is one of the maximum ratings given on a data sheet.

Accepted Answer

A) True 
 B)False  True

Question 3

You can quickly check the condition of a diode with an ohmmeter on a high resistance range.

Accepted Answer

A) True 
 B)False  True

Question 4

What is the condition that causes a diode togo into avalanche when a huge number of carriers suddenly appear in the depletion layer?

Accepted Answer

A)  forward voltage drop 
B)  maximum power dissipation 
C)  reverse breakdown voltage 
D)  maximum forward current 
A)  forward voltage drop 
B)  maximum power dissipation 
C)  reverse breakdown voltage 
D)  maximum forward current

Question 5

The second approximation of a silicon diode is basically

Accepted Answer

A)  the diode appears as a switch in series with a barrier potential of 0.7 V. 
B)  the diode appears as a switch in parallel with a barrier potential of 0.7 V. 
C)  the diode appears as a barrier potential of 0.4 V. 
D)  the diode appears as a short circuit. 
A)  the diode appears as a switch in series with a barrier potential of 0.7 V. 
B)  the diode appears as a switch in parallel with a barrier potential of 0.7 V. 
C)  the diode appears as a barrier potential of 0.4 V. 
D)  the diode appears as a short circuit.

Question 6

In the forward region,the voltage at which thecurrent starts to increase rapidly is called

Accepted Answer

A)  the depletion voltage of the diode. 
B)  the saturation current of the diode. 
C)  the cuto voltage of the diode. 
D)  the knee voltage of the diode. 
A)  the depletion voltage of the diode. 
B)  the saturation current of the diode. 
C)  the cuto voltage of the diode. 
D)  the knee voltage of the diode.

Question 7

When testing a diode with an ohmmeter,a proper operating diode should

Accepted Answer

A)  exhibit a high ratio of reverse to forward resistance. 
B)  exhibit a low ratio of reverse to forward resistance. 
C)  exhibit high resistance in both directions. 
D)  exhibit low resistance in both directions. 
A)  exhibit a high ratio of reverse to forward resistance. 
B)  exhibit a low ratio of reverse to forward resistance. 
C)  exhibit high resistance in both directions. 
D)  exhibit low resistance in both directions.

Question 8

Much of the information on a manufacturer's datasheet is obscure and of use only to circuit designers.

Accepted Answer

A) True 
 B)False

Question 9

An ordinary resistor is a linear device because the graph of its current versus voltage is a straight line.

Accepted Answer

A) True 
 B)False

Question 10

Measuring high resistance in both directions on a diode indicates an open diode.

Accepted Answer

A) True 
 B)False

Question 11

When a diode burns out,it becomes a short circuit.

Accepted Answer

A) True 
 B)False

Question 12

As with many tiny surface mount devices,thedetermination of the PIN is obtained from

Accepted Answer

A)  clues on the circuit board and schematic diagram. 
B)  reading the numbers on the device's underside. 
C)  reading the color code on the device's underside. 
D)  reading the label stamped on the top of the device. 
A)  clues on the circuit board and schematic diagram. 
B)  reading the numbers on the device's underside. 
C)  reading the color code on the device's underside. 
D)  reading the label stamped on the top of the device.

Question 13

The p side of a diode is referred to as the

Accepted Answer

A)  positive terminal. 
B)  triode. 
C)  anode. 
D)  cathode. 
A)  positive terminal. 
B)  triode. 
C)  anode. 
D)  cathode.

Question 14

The dc resistance of a diode is the same as the bulk resistance.

Accepted Answer

A) True 
 B)False

Question 15

In the third approximation of a diode,

Accepted Answer

A)  the depletion layer is ignored. 
B)  the ohmic resistance is ignored. 
C)  the bulk resistance is ignored if greater than 1Ω. 
D)  the bulk resistance is included. 
A)  the depletion layer is ignored. 
B)  the ohmic resistance is ignored. 
C)  the bulk resistance is ignored if greater than 1Ω. 
D)  the bulk resistance is included.

Question 16

The ratio of total voltage to total diode current is the dc resistance of the diode.

Accepted Answer

A) True 
 B)False

Question 17

A diode that measures extremely low resistance in both directions is called a leaky diode.

Accepted Answer

A) True 
 B)False

Question 18

A diode can be e ectively checked by using

Accepted Answer

A)  an oscilloscope. 
B)  a frequency counter. 
C)  a spectrum analyzer. 
D)  an ohmmeter. 
A)  an oscilloscope. 
B)  a frequency counter. 
C)  a spectrum analyzer. 
D)  an ohmmeter.

Question 19

With regard to reverse breakdown voltage,conservative design engineers generally use a safety factor of

Accepted Answer

A)  2 
B)  5 
C)  10 
D)  100 
A)  2 
B)  5 
C)  10 
D)  100

Question 20

A diode is a nonlinear device because thegraph of its current versus voltage is

Accepted Answer

A)  a straight line. 
B)  not a straight line. 
C)  inversely proportional to the resistance. 
D)  exponential. 
A)  a straight line. 
B)  not a straight line. 
C)  inversely proportional to the resistance. 
D)  exponential.

Exam 3: Diode Theory Key

When an accurate analysis of a diode circuit is required,

The maximum forward current is one of the maximum ratings given on a data sheet.

You can quickly check the condition of a diode with an ohmmeter on a high resistance range.

What is the condition that causes a diode togo into avalanche when a huge number of carriers suddenly appear in the depletion layer?

The second approximation of a silicon diode is basically

In the forward region,the voltage at which thecurrent starts to increase rapidly is called

When testing a diode with an ohmmeter,a proper operating diode should

Much of the information on a manufacturer's datasheet is obscure and of use only to circuit designers.

An ordinary resistor is a linear device because the graph of its current versus voltage is a straight line.

Measuring high resistance in both directions on a diode indicates an open diode.

When a diode burns out,it becomes a short circuit.

As with many tiny surface mount devices,thedetermination of the PIN is obtained from

The p side of a diode is referred to as the

The dc resistance of a diode is the same as the bulk resistance.

In the third approximation of a diode,

The ratio of total voltage to total diode current is the dc resistance of the diode.

A diode that measures extremely low resistance in both directions is called a leaky diode.

A diode can be e ectively checked by using

With regard to reverse breakdown voltage,conservative design engineers generally use a safety factor of

A diode is a nonlinear device because thegraph of its current versus voltage is

Introduction

Semoconductors

Diode Circuits

Special-Purpose Diodes Key

BJT Fumdamentals

BJT Biasing

Basic BJT Amplifiers

Multistage,CC,and CB Amplifiers

Power Amplifiers

JFETS

Mosfets

Thyristors

Frequency Effects

Differential Amplifiers

Operational Amplifiers

Negative Feedback

Linear OP AMP Circuits

Active Filters Key

Nonlinear Op-Amp Circuit Applications Key

Oscillators Key

Regulated Power Supplies Key

Filters