A proton starting from rest travels through a potential of 1.0 kV ...

[dollx]

A proton starting from rest travels through a potential of 1.0 kV and then moves into a uniform 0.040-T magnetic field. What is the radius of the proton's resulting orbit? (mproton = 1.67  10-27 kg, e = 1.60  10-19 C)
 
  A) 0.080 m
  B) 0.11 m
  C) 0.14 m
  D) 0.17 m
  E) 0.19 m

Question 2

A series LRC circuit has a sinusoidal voltage supplied to it at 197 kHz with a peak voltage of 270 V, a 41- resistance, a 14- F capacitor, and a 64-H inductance.
 
  What is the peak current for this circuit?
  A) 3.5 A
  B) 2.3 A
  C) 4.2 A
  D) 6.6 A

[olderstudent]

Answer to Question 1

B

Answer to Question 2

A

[dollx]

Excellent

[billybob123]

Gracias!