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PHY 2054 Exam 1 — 88: F Ch 15-114 07 Febmary 2006
mes. P. Avery, RE. Dunnam
Name (print): Signature: On my honor, I have neither given nor received unauthorized aid on this examination. YOUR TEST NUMBER IS THE 5-DIGIT NUNIBER. AT THE TOP OF EACH PAGE. DIRECTIONS
(1) Bubble in your test number on your Scan'llron sheet (use 76—80 for the Migit number). Print and bubble
in your last name, ﬁrst and middle initial on your Scan’lron sheet. Similarly, print and bubble in your 8 digit UFID on your Scsn'n-on sheet.
2 PRINT and SIGN your full name at the top of the question sheet.
3 At the end of the exam, turn in separately the question sheet and ScanTron sheet.
4 If there is 1:10 answer close enough to be correct, the correct answer is to leave the question blank. You should not expect
of t ese. many
(5) Blacken the circle of your intended answer completely, using a number 2 pencil. Do not make any stray marks
or the answer sheet may not read properly. (6) Good ludr!
>>>>>>>>BEFORE YOU FINISH <<<<<<<<
Make sure that your name is printed and signed on top. Hand in the Scan'llon sheet separately. Useful (1’) Constants: W ewe-85mm ,(Nm,
proton mass = 1.67 x 10' kg electron mass = 9.1 x 10" kg 1. At what distance in in from a_0.9 Coulomb point charge is the magnitude of the electric field produced by the charge
equal to 900 N/C? * w €93,000 (2) 9,000 (3) 9,000,000 (4) 30 (5) 300
2. Al-grampatticlewithachsrgeoflmiﬂiCstaﬂsﬁomrestinaWomem How far (in m) does the particle travel in 2 seconds? (1) 10 ﬂ (3) 30 (4) 40 (5) 5 3. Two identical point charges +Q are located on the y—-axis at
y = :ta as shown. What is the We of the electric ﬁeld
on the x—axis at the point a: z a . @Jle/a” (2) 1.41kc2/a2 (3) 2kQ/a2 (4) ’kQ/a’ (5) 0.5kQ/02 4. For the above charge conﬁguration, what is the direction of the net electric ﬁeld at a: = a?
@m (2) —2 (3) +y (4) ~y (5) 45 degrees to :r—axis ...
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