Question 1

A typical transformer fault Would be an open Winding.

Accepted Answer

A) True 
 B)False

Question 2

The measured voltage on the secondary of a given transformer is 0 V.W hich of the following could have caused this?

Accepted Answer

A) open secondary 
B) open primary 
C) shorted load 
D) any of the above 
A) open secondary 
B) open primary 
C) shorted load 
D) any of the above

Question 3

To match a $600 \Omega$ audio load to a $4 \Omega$ speaker system, the primary of the impedance matching transformer must have ـــــــــــــ more turns than the secondary.

Accepted Answer

A) 150 
B) 12.2 
C) 3.06 
D) The primary should have less turns than the secondary. 
A) 150 
B) 12.2 
C) 3.06 
D) The primary should have less turns than the secondary.

Question 4

$$\text { Figure } 14 < 1$$
-What is the secondary voltage in Figure 14-1 if the turns ratio is 4.5:1?

Accepted Answer

A) 26.7V 
B) 4.72V 
C) 540V 
D) 5.92V 
A) 26.7V 
B) 4.72V 
C) 540V 
D) 5.92V

Question 5

$$\text { Figure } 14 < 1$$
-What is the secondary voltage in Figure 14-1 if the turns ratio is 7:1?

Accepted Answer

A)   840 VRMS 
B)   8.59 VRMS 
C)   17.1 VRMS 
D)   420 VRMS 
A)   840 VRMS 
B)   8.59 VRMS 
C)   17.1 VRMS 
D)   420 VRMS

A typical transformer fault Would be an open Winding.

The measured voltage on the secondary of a given transformer is 0 V.W hich of the following could have caused this?

To match a $600 \Omega$ audio load to a $4 \Omega$ speaker system, the primary of the impedance matching transformer must have ـــــــــــــ more turns than the secondary.

$\text { Figure } 14 < 1 -What is the secondary voltage in Figure 14-1 if the turns ratio is 4.5:1?$ $\text { Figure } 14 < 1$ -What is the secondary voltage in Figure 14-1 if the turns ratio is 4.5:1?

$\text { Figure } 14 < 1 -What is the secondary voltage in Figure 14-1 if the turns ratio is 7:1?$ $\text { Figure } 14 < 1$ -What is the secondary voltage in Figure 14-1 if the turns ratio is 7:1?

Quantities and Units

Voltage, Current, and Resistance

Ohms Law, Energy, and Power

Series Circuits

Parallel Circuits

Series-Parallel Circuits

Magnetism and Electromagnetism

Introduction to Alternating Current and Voltage

Capacitors

Rc Circuits

Inductors

Rl Circuits

Rlc Circuits and Resonance

Transformers

Regulators, Filters, and Op-Amps

Understanding Transducers, Sensors, and Conversion in Industrial Processes

Filters

Exam 14: Time Response of Reactive Circuits

A typical transformer fault Would be an open Winding.

The measured voltage on the secondary of a given transformer is 0 V.W hich of the following could have caused this?

To match a 600Ω600 \Omega600Ω audio load to a 4Ω4 \Omega4Ω speaker system, the primary of the impedance matching transformer must have ـــــــــــــ more turns than the secondary.

Figure 14<1\text { Figure } 14 < 1 Figure 14<1 -What is the secondary voltage in Figure 14-1 if the turns ratio is 4.5:1?

Figure 14<1\text { Figure } 14 < 1 Figure 14<1 -What is the secondary voltage in Figure 14-1 if the turns ratio is 7:1?

Quantities and Units

Voltage, Current, and Resistance

Ohms Law, Energy, and Power

Series Circuits

Parallel Circuits

Series-Parallel Circuits

Magnetism and Electromagnetism

Introduction to Alternating Current and Voltage

Capacitors

Rc Circuits

Inductors

Rl Circuits

Rlc Circuits and Resonance

Transformers

Regulators, Filters, and Op-Amps

Understanding Transducers, Sensors, and Conversion in Industrial Processes

Filters

To match a $600 \Omega$ audio load to a $4 \Omega$ speaker system, the primary of the impedance matching transformer must have ـــــــــــــ more turns than the secondary.

$\text { Figure } 14 < 1 -What is the secondary voltage in Figure 14-1 if the turns ratio is 4.5:1?$ $\text { Figure } 14 < 1$ -What is the secondary voltage in Figure 14-1 if the turns ratio is 4.5:1?

$\text { Figure } 14 < 1 -What is the secondary voltage in Figure 14-1 if the turns ratio is 7:1?$ $\text { Figure } 14 < 1$ -What is the secondary voltage in Figure 14-1 if the turns ratio is 7:1?