s06x1aan - 1 NAME PART C . 1. a) -= = = = = 4 4 4 4 4 4 4 4...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
NAME PHYS-1200 PHYSICS II QUIZ 1 FEBRUARY 15, 2006 SOLUTIONS PART A. 1. C 4. A 8. B 2. D 5. E 3. E 6. B 7. D PART B . 1. INCREASE . q = C E . When the switch is closed, C 3 will be added in parallel with C 2 . The parallel combination will have a higher capacitance than C 2 alone. Since that combination is in series with C 1 , the total capacitance will increase and the charge will increase. 2. The resistors are in series so the current is the same in both resistors. i = 0.60 A 3. The figure is below. The reasons for the results are as follows: a) According to the right hand rule, both wires produce fields that point upward at O . b) According to the right hand rule, both wires produce fields that go around the individual wires in a clockwise direction at point P . The veritcal components of the two fields add to zero, and both horizontal components point to the right. c) The wire on the left produces a field that points downward, and the wire on the right produces a field of equal magnitude that points upward at point Q . They add to zero.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 1 NAME PART C . 1. a) -= = = = = 4 4 4 4 4 4 4 4 4 3 2 2 R K r K dr r K dr r Kr dr r Q R R R R 4 R K Q = , so 4 R Q K = b) From Gauss law 2 4 1 r q E enc = . For r > R , q enc = Q = K R 4 . Then, 2 4 2 4 4 1 r R K r Q E = = Either answer is acceptable. c) 2 4 1 r q E enc = 4 4 4 4 4 4 3 2 2 4 4 4 4 4 R Qr r R Q r K r K dr r K dr r Kr dr r q r r r r enc = = = = = = = Then, 2 4 2 4 1 4 1 r r K r q E enc = = , so 2 4 2 4 4 r R Q r K E = = Either answer is acceptable. 2. a) A . 5 V 020 . = = i R E R = 4.0 10-3 = 4.0 m b) A L R = , so R L A = , and L = 2 r . Then, = =--10 . 4 m) 10 . ( 2 m) 10 7 . 1 ( 2 3 8 R r A A = 2.7 10-6 m c) THE MAGNETIC FIELD IS INCREASING 2...
View Full Document

Page1 / 2

s06x1aan - 1 NAME PART C . 1. a) -= = = = = 4 4 4 4 4 4 4 4...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online