Question 1

In a diode,after the barrier potential is overcome,all that impedes the current is the

Accepted Answer

A)  ohmic resistance of the p and n regions. 
B)  bulk resistance. 
C)  dynamic resistance of the p region. 
D)  depletion resistance. 
A)  ohmic resistance of the p and n regions. 
B)  bulk resistance. 
C)  dynamic resistance of the p region. 
D)  depletion resistance.

Question 2

Surface mount diodes are large and ine cient.

Accepted Answer

A) True 
 B)False

Question 3

Manufacturer's data sheets generally list the value of bulk resistance.

Accepted Answer

A) True 
 B)False

Question 4

The ratio of total diode voltage to total diode current is the

Accepted Answer

A)  bulk resistance. 
B)  dc resistance. 
C)  reactance. 
D)  impedance. 
A)  bulk resistance. 
B)  dc resistance. 
C)  reactance. 
D)  impedance.

Question 5

The ideal diode approximation is su cient

Accepted Answer

A)  for most troubleshooting situations. 
B)  to determine very accurate values for load current and voltage. 
C)  for circuit design. 
D)  for analyzing transistor circuits. 
A)  for most troubleshooting situations. 
B)  to determine very accurate values for load current and voltage. 
C)  for circuit design. 
D)  for analyzing transistor circuits.

Question 6

The sum of the ohmic resistances is called the

Accepted Answer

A)  depletion layer. 
B)  ohmmeter. 
C)  impedance. 
D)  bulk resistance. 
A)  depletion layer. 
B)  ohmmeter. 
C)  impedance. 
D)  bulk resistance.

Question 7

If the current in a diode is too large

Accepted Answer

A)  the load resistor will short. 
B)  excessive heat may destroy the diode. 
C)  the diode becomes an ampli er. 
D)  bulk resistance becomes smaller. 
A)  the load resistor will short. 
B)  excessive heat may destroy the diode. 
C)  the diode becomes an ampli er. 
D)  bulk resistance becomes smaller.

Question 8

The letter Q is an abbreviation for quiescent,which means at rest.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following is not an advantage of using surface-mount diodes?

Accepted Answer

A)  small 
B)  e cient 
C)  inexpensive 
D)  easy to test 
A)  small 
B)  e cient 
C)  inexpensive 
D)  easy to test

Question 10

Ideally,a diode acts like a perfect conductor when forward-biased and

Accepted Answer

A)  like a perfect conductor when reverse-biased. 
B)  like a perfect semiconductor when reverse-biased. 
C)  like a perfect insulator when reverse-biased. 
D)  like a perfect diode when reverse-biased. 
A)  like a perfect conductor when reverse-biased. 
B)  like a perfect semiconductor when reverse-biased. 
C)  like a perfect insulator when reverse-biased. 
D)  like a perfect diode when reverse-biased.

Question 11

When graphing diode characteristics,a tool used to nd the exact value of diode current and voltage is the

Accepted Answer

A)  ohmmeter. 
B)  oscilloscope. 
C)  load line. 
D)  third approximation. 
A)  ohmmeter. 
B)  oscilloscope. 
C)  load line. 
D)  third approximation.

Question 12

Much of the information on a manufacturer's data sheet is

Accepted Answer

A)  necessary to understand diode circuits. 
B)  necessary to troubleshoot diode circuits. 
C)  obscure and of use only to circuit designers. 
D)  necessary only to electronics technicians. 
A)  necessary to understand diode circuits. 
B)  necessary to troubleshoot diode circuits. 
C)  obscure and of use only to circuit designers. 
D)  necessary only to electronics technicians.

Question 13

An ideal diode acts like a switch that closes when

Accepted Answer

A)  the bias voltage is zero. 
B)  reversed-biased. 
C)  forward-biased. 
D)  taken out of the circuit. 
A)  the bias voltage is zero. 
B)  reversed-biased. 
C)  forward-biased. 
D)  taken out of the circuit.

Question 14

An ideal diode acts like a switch that closes when forward-biased and opens when reverse-biased.

Accepted Answer

A) True 
 B)False

Question 15

The two most popular basic styles of surface-mount packages are surface mount and

Accepted Answer

A)  small outline transistor. 
B)  large outline transistor. 
C)  surface outline diode. 
D)  surface outline transistor. 
A)  small outline transistor. 
B)  large outline transistor. 
C)  surface outline diode. 
D)  surface outline transistor.

Question 16

The dc resistance of a diode equals

Accepted Answer

A)  the bulk resistance. 
B)  the bulk resistance plus the effect of the barrier potential. 
C)  the bulk resistance minus the e ect of the barrier potential. 
D)  zero. 
A)  the bulk resistance. 
B)  the bulk resistance plus the effect of the barrier potential. 
C)  the bulk resistance minus the e ect of the barrier potential. 
D)  zero.

Question 17

What is the data sheet speci cation that stsli the reverse current at the maximum reverse dc rated voltage?

Accepted Answer

A)  reverse breakdown 
B)  maximum forward current 
C)  maximum reverse current 
D)  forward breakdown 
A)  reverse breakdown 
B)  maximum forward current 
C)  maximum reverse current 
D)  forward breakdown

Question 18

When graphing the diode,the greater the slope of the diode curve

Accepted Answer

A)  the smaller the bulk resistance. 
B)  the greater the bulk resistance. 
C)  the smaller the forward current. 
D)  the lower the power dissipated. 
A)  the smaller the bulk resistance. 
B)  the greater the bulk resistance. 
C)  the smaller the forward current. 
D)  the lower the power dissipated.

Question 19

The sum of the ohmic resistances of a diode is called the ideal resistance.

Accepted Answer

A) True 
 B)False

Question 20

How is the power dissipation of a diode calculated?

Accepted Answer

A)  diode current times diode resistance 
B)  diode voltage divided by diode current 
C)  diode voltage times diode current 
D)  diode current divided by diode voltage 
A)  diode current times diode resistance 
B)  diode voltage divided by diode current 
C)  diode voltage times diode current 
D)  diode current divided by diode voltage

Exam 3: Diode Theory Key

In a diode,after the barrier potential is overcome,all that impedes the current is the

Surface mount diodes are large and ine cient.

Manufacturer's data sheets generally list the value of bulk resistance.

The ratio of total diode voltage to total diode current is the

The ideal diode approximation is su cient

The sum of the ohmic resistances is called the

If the current in a diode is too large

The letter Q is an abbreviation for quiescent,which means at rest.

Which of the following is not an advantage of using surface-mount diodes?

Ideally,a diode acts like a perfect conductor when forward-biased and

When graphing diode characteristics,a tool used to nd the exact value of diode current and voltage is the

Much of the information on a manufacturer's data sheet is

An ideal diode acts like a switch that closes when

An ideal diode acts like a switch that closes when forward-biased and opens when reverse-biased.

The two most popular basic styles of surface-mount packages are surface mount and

The dc resistance of a diode equals

What is the data sheet speci cation that stsli the reverse current at the maximum reverse dc rated voltage?

When graphing the diode,the greater the slope of the diode curve

The sum of the ohmic resistances of a diode is called the ideal resistance.

How is the power dissipation of a diode calculated?

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