Question

In: Physics

When an AC source is connected across a 11.5-? resistor, the rms current in the resistor...

When an AC source is connected across a 11.5-? resistor, the rms current in the resistor is 8.66 A.

(a) Find the rms voltage across the resistor.
V

(b) Find the peak voltage of the source.
V

(c) Find the maximum current in the resistor.
A

(d) Find the average power delivered to the resistor.
W

Solutions

Expert Solution

a). rms voltage across the resistor Vrms = Irms R

= 8.66 11.5

= 99.59 Volts

  rms voltage across the resistor Vrms = 99.59 Volts

b).Peak voltage source Vpeak = Vrms 2

= 99.59 2

= 140.841 volts

  Peak voltage of the source Vpeak   = 140.841 Volts

c). Maximum current in the resistor Imax = Irms2

= 8.66 2

= 12.247 amps

  Maximum current in the resistor Imax = 12.247 amps

d). Average power delivered to the resistor Pavg = Vrms Irms

  = 140.841 12.247

= 1724.892 watts

Average power delivered to the resistor Pavg  = 1724.892 watts   

genius_generous answered 2 years ago
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