Exam 8: Introduction to Alternating Current and Voltage

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

(Multiple Choice)
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    Figure  8 < 2  -Calculate V<sub>R1</sub>  in Figure 8-2. Figure 8<28 < 2 -Calculate VR1 in Figure 8-2.

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A formula for VRMS is________

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A sineW aveʹs frequency equals the reciprocal of its period.

(True/False)
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    Figure  8 < 2  -In Figure  8-2 , what is the instantaneous voltage across  R<sub>1</sub>  at  122°?  Figure 8<28 < 2 -In Figure 8-2 , what is the instantaneous voltage across R1 at 122°?

(Multiple Choice)
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A sine wave's instantaneous voltage is 0 V at _______degrees.

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

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

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7.07 VPP is approximately equal to 2.5 VRMS

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

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    Figure  8 < 2  -Find R<sub>T</sub> in Figure 8-2. Figure 8<28 < 2 -Find RT in Figure 8-2.

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

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

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

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

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

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

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

(True/False)
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A 10 VP sine wave is equal to________

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

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