A 120-mH inductor is in series with a 20- resistor and a variable ...

[moongchi]

A 120-mH inductor is in series with a 20- resistor and a variable capacitor that can range from 0.110 F to 0.400 F.
 
  (a) What is the range of possible resonance frequencies? (b) If the power supply is a 24-V rms source, what rms current flows at resonance?

Question 2

A proton in a certain particle accelerator has a kinetic energy that is equal to its rest energy.
 
  What is the TOTAL energy of the proton as measured by a physicist working with the accelerator? (c = 3.00  108 m/s, mproton = 1.67  10-27 kg)
  A) 1.50  10-10 J
  B) 8.77  10-10 J
  C) 3.01  10-10 J
  D) 2.07  10-10 J
  E) 5.69  10-11 J

[kaykay69]

Answer to Question 1

(a) 0.726 kHz to 1.39 kHz (b) 1.20 A

Answer to Question 2

C

[moongchi]

Thanks for the timely response, appreciate it

[epscape]

Great answer, keep it coming