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Topic:Alternating Current
| I.D |
Level |
Problem |
Problem Topic |
| 499 |
High school |
In the figure at “click here” each of the resistors in the circuit to the left has a resistance of 4.3 ohm.
a). What is the equivalent resistance between points F and H ?
b. ) What is the equivalent resistance between points F and G ?
. . . continues
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Alternating Current |
| 536 |
High school |
A sine wave goes through 5 cycles in 10 micro seconds . What is it period ?
. . . continues
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Alternating Current |
| 537 |
High school |
Sine wave frequency of 50 kHz . How many cycles does it complete in 10 ms ? . . . continues
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Alternating Current |
| 538 |
High school |
A sine wave has a peak value of 12V . Determine the rms, peak to peak , and half cycle average ? . . . continues
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Alternating Current |
| 539 |
High school |
One sine wave has a positive peak at 75 degrees and another positive peak at 100 degrees . How much each sine wave shifted in phase from the 0 degree reference ? What was the phase angle in them? . . . continues
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Alternating Current |
| 540 |
High school |
A certain wave has a positive going zero crossing at 0 degrees and an rms value of 20V , Calculate its instantaneous value of each: 15 degrees , 33 , 50 , 110 , 70, 145 , 250 , 325 degrees . . . . continues
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Alternating Current |
| 541 |
High school |
For a 0 degree reference sine wave with an rms value 6.37 determine the instantaneous value at pi/8 rad, pi/4 rad , pi/2rad , 3pi/4rad , pi/rad , 3pi/rad , 2pi rad . . . . continues
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Alternating Current |
| 542 |
High school |
A sine wave with an rms value of 10.6V is riding on a level of 24 V . What are the maximum and minimum values of the resulting waveform ? . . . continues
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Alternating Current |
| 543 |
High school |
A 6V peak sine wave is riding a DC voltage of 8V . If the DC voltage is lowered to 5V how far negative will the sine wave go ? . . . continues
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Alternating Current |
| 544 |
High school |
In the circuit shown in Figure at “click here” in each of the following cases , does the current I lead or lag the voltage E ?
(1) VL > VC
(2) VL < VC
. . . continues
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Alternating Current |
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