The voltage amplitude of an ac source is 28.0V , and its angular frequency is 1100rad/s...

The voltage amplitude of an ac source is 28.0V , and its angular frequency is 1100rad/s . Find the current amplitude if the capacitance of a capacitor connected across the source is

A) 1.00

Expert Solution

Note that the amplitude of the current is

Imax = Vmax/[Lw]

where

Vmax = amplitude of the voltage =    28   V
L = inductance
w = the angular frequency =    1100   rad/s

Thus,

if L =    1.00E-08   F

Then

Imax =    2.55E+06   A   [ANSWER, PART A]

If L =    1.00E-06   F

Then

Imax =    2.55E+04   A   [ANSWER, PART B]

Lastly, if

L =    0.0001   F

Then

Imax =    255 A      [ANSWER, PART C]

genius_generous answered 2 years ago

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