Author Question: A proton starting from rest travels through a potential of 1.0 kV and then moves into a uniform ... (Read 94 times)

dollx · **on:** Jul 29, 2018

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