Question 1

$$\text { Figure } 8 < 1$$
-VPP is measured between points ________ in Figure 8-1.

Accepted Answer

A) A and B 
B) D and F 
C) G and I 
D) C and H

Question 2

Figure \(8 R1  in Figure 8-2.

Accepted Answer

A)   6.84 VP 
B)   13.2 VP 
C)   13.7 VP 
D)   21.4 VP

Question 3

A formula for VRMS is________

Accepted Answer

A)   2 *VP 
B)   2.8 *VP 
C)   0.707 *VP 
D)   0.707 *VPP

Question 4

A sineW aveʹs frequency equals the reciprocal of its period.

Accepted Answer

A) True 
 B)False

Question 5

Figure \(8 1  at  122°?

Accepted Answer

A) 11.2V 
B) 11.6V 
C) 5.8V 
D) 18.2V

Question 6

A sine wave's instantaneous voltage is  0 V at _______degrees.

Accepted Answer

A)  360 
B)  0 
C)  180 
D)  all of these

Question 7

$$\text { Figure } 8 < 1$$
-Which point in Figure  8-1  is  180° away from point E?

Accepted Answer

A) A 
B) B 
C) C 
D) D

Question 8

The average value of a rectangular pulse wave is calculated as:

Accepted Answer

A)  Vavg  =0.637 Vp 
B)  Vavg  =  Vbaseline  +  (duty cycle)*Vp 
C)  Vavg  =1.57 Vp . 
D)  Vavg  =  Vbaseline  +Vp.

Question 9

7.07 VPP  is approximately equal to  2.5  VRMS

Accepted Answer

A) True 
 B)False

Question 10

The time (T)and the frequency (f)of an ACW aveform are related as:

Accepted Answer

A) universally proportional. 
B) directly proportional. 
C) inversely proportional. 
D) complimentary proportional.

Question 11

Figure \(8 T in Figure 8-2.

Accepted Answer

A)   4.7 kΩ 
B)   4.77 kΩ 
C)   6.2 kΩ 
D)   1.13 kΩ

Question 12

What is the instantaneous voltage at  42° on a  230 VP sine wave?

Accepted Answer

A)   154  V 
B)   115  V 
C)   149  V 
D)   76.1  V

Question 13

A 60 Hz sine wave completes ________ cycles every 10 seconds.

Accepted Answer

A) 600 
B) 1/16 
C) 10 
D) 6

Question 14

If the period of a square wave is 22 ms,What is its frequency?

Accepted Answer

A) 45.5 kHz 
B) 45.5 Hz 
C) 22 kHz 
D) 22 Hz

Question 15

If a 10 $k \Omega$ resistor carries  5 mARMS of current, its voltage drop equals_________

Accepted Answer

A)  5 VRMS 
B)   50  VRMS 
C)   7.07 VRMS 
D)   70.7 VRMS

Question 16

Figure \(8 PP across the source in Figure  8-2 , what is the trouble?

Accepted Answer

A)   R1  is open. 
B)  Both  R1  and R2  are open. 
C)  R2 is open. 
D)  There is no trouble.  56 VPP  is a normal measurement for the source voltage. 
E)  any of these

Question 17

A square wave is a unique form of the rectangular pulse wave in that:

Accepted Answer

A) the duty cycle is 50%. 
B) the positive and negative halves are equal. 
C) the Wave is symmetrical. 
D) all of these

Question 18

Rise time, fall time, and duty cycle are all terms associatedW ith sineW ave measurement.

Accepted Answer

A) True 
 B)False

Question 19

A  10 VP sine wave is equal to________

Accepted Answer

A)   20 VPP 
B)   100 VPP 
C)   5 VPP 
D)  none of the above

Question 20

What is the instantaneous voltage at  17° on a  169 VP sine wave?

Accepted Answer

A)   49.4 V 
B)   80.5 V 
C)   161 V 
D)   98.8 V

Exam 8: Introduction to Alternating Current and Voltage

$\text { Figure } 8 < 1 -VPP is measured between points in Figure 8-1. A) A and B B) D and F C) G and I D) C and H$ $\text { Figure } 8 < 1$ -VPP is measured between points in Figure 8-1.

Figure $8 < 2$ -Calculate V_R1 in Figure 8-2.

A formula for V_RMS is________

A sineW aveʹs frequency equals the reciprocal of its period.

Figure $8 < 2$ -In Figure 8-2 , what is the instantaneous voltage across R₁ at 122°?

A sine wave's instantaneous voltage is 0 V at _______degrees.

$\text { Figure } 8 < 1 -Which point in Figure 8-1 is 180° away from point E? A) A B) B C) C D) D$ $\text { Figure } 8 < 1$ -Which point in Figure 8-1 is 180° away from point E?

The average value of a rectangular pulse wave is calculated as:

7.07 V_PP is approximately equal to 2.5 V_RMS

The time (T) and the frequency (f) of an ACW aveform are related as:

Figure $8 < 2$ -Find R_T in Figure 8-2.

What is the instantaneous voltage at 42° on a 230 VP sine wave?

A 60 Hz sine wave completes ________ cycles every 10 seconds.

If the period of a square wave is 22 ms,What is its frequency?

If a 10 $k \Omega$ resistor carries 5 mA_RMS of current, its voltage drop equals_________

Figure $8 < 2$ -If you measure about 56 V_PP across the source in Figure 8-2 , what is the trouble?

A square wave is a unique form of the rectangular pulse wave in that:

Rise time, fall time, and duty cycle are all terms associatedW ith sineW ave measurement.

A 10 V_P sine wave is equal to________

What is the instantaneous voltage at 17° on a 169 V_P sine wave?

Exam 8: Introduction to Alternating Current and Voltage

Figure 8<1\text { Figure } 8 < 1 Figure 8<1 -VPP is measured between points ________ in Figure 8-1.

Figure 8<28 < 28<2 -Calculate VR1 in Figure 8-2.

A formula for VRMS is________

A sineW aveʹs frequency equals the reciprocal of its period.

Figure 8<28 < 28<2 -In Figure 8-2 , what is the instantaneous voltage across R1 at 122°?

A sine wave's instantaneous voltage is 0 V at _______degrees.

Figure 8<1\text { Figure } 8 < 1 Figure 8<1 -Which point in Figure 8-1 is 180° away from point E?

The average value of a rectangular pulse wave is calculated as:

7.07 VPP is approximately equal to 2.5 VRMS

The time (T) and the frequency (f) of an ACW aveform are related as:

Figure 8<28 < 28<2 -Find RT in Figure 8-2.

What is the instantaneous voltage at 42° on a 230 VP sine wave?

A 60 Hz sine wave completes ________ cycles every 10 seconds.

If the period of a square wave is 22 ms,What is its frequency?

If a 10 kΩk \OmegakΩ resistor carries 5 mARMS of current, its voltage drop equals_________

Figure 8<28 < 28<2 -If you measure about 56 VPP across the source in Figure 8-2 , what is the trouble?

A square wave is a unique form of the rectangular pulse wave in that:

Rise time, fall time, and duty cycle are all terms associatedW ith sineW ave measurement.

A 10 VP sine wave is equal to________

What is the instantaneous voltage at 17° on a 169 VP sine wave?

$\text { Figure } 8 < 1 -VPP is measured between points in Figure 8-1. A) A and B B) D and F C) G and I D) C and H$ $\text { Figure } 8 < 1$ -VPP is measured between points in Figure 8-1.

Figure $8 < 2$ -Calculate V_R1 in Figure 8-2.

A formula for V_RMS is________

Figure $8 < 2$ -In Figure 8-2 , what is the instantaneous voltage across R₁ at 122°?

$\text { Figure } 8 < 1 -Which point in Figure 8-1 is 180° away from point E? A) A B) B C) C D) D$ $\text { Figure } 8 < 1$ -Which point in Figure 8-1 is 180° away from point E?

7.07 V_PP is approximately equal to 2.5 V_RMS

Figure $8 < 2$ -Find R_T in Figure 8-2.

If a 10 $k \Omega$ resistor carries 5 mA_RMS of current, its voltage drop equals_________

Figure $8 < 2$ -If you measure about 56 V_PP across the source in Figure 8-2 , what is the trouble?

A 10 V_P sine wave is equal to________

What is the instantaneous voltage at 17° on a 169 V_P sine wave?