推 Netralory :看來原PO很缺錢 07/01 00:39
推 x8318 :原PO疑似我高中同學 07/02 01:23
推 johnnyguava :原po不和我練球 原來都在忙這個... 07/02 11:29
→ def2864 :二樓是哪位中肯不嘴砲的喇叭同學嗎 07/03 00:01
推 abacada :XD 07/03 19:17
課程名稱︰普通物理甲下
課程性質︰系上必修
課程教師︰高涌泉
開課學院：理學院
開課系所︰物理系
考試日期（年月日）︰09.04.16
考試時限（分鐘）：110min
是否需發放獎勵金：是
（如未明確表示，則不予發放）
試題 :
1. In Fig.(1), a "semi-infinite" nonconducting rod linear (infinite in one
direction only) has uniform linear charge density λ. What is the electric
→
field E at point P? 10%
+ + + + + + + + + + + + + .....
╴ ═════════════.....
↑
R
↓ .P Fig.(1)
￣
2. A nonconducting solid sphere has a uniform charge density ρ. A spherical
cavity is hollowed out of the sphere, as shown in Fig.(2). Show that the
electric field at all point within the cavity is uniform. 20%
Fig.(2) 大球中有小球 大球球心以a向量指向小球球心
3. How does the resistivity of metals depend on the temperature according to
the free-electron model of electrical conduction in metals and classical
physics. 10%
4. In Fig.(3), point p is at perpendicular distance R from one end of straight
line of length L carrying current i. What is the magnitude of the magnetic
field at P? 10%
.P
i ╱↑R
→ ╱ ↓ Fig.(3)
════════
← L →
5. It is said that the Hall effect can be used to (a) find out whether the
charge carriers in a conductor are positively charged or negatively charged and
(b) measure the number density of such charge carriers. Explain why it is said
so. 20%
6. In an oscillating series RLC circuit, find the time required for the maximum
energy present in the capacitor during an oscillation to fall to half its
initial value. Assume q = Q at t = 0 10%
7. A parallel-plate capacitor with circular plates of radius R is being charged
→ →
with a current i. Between the plates, what is the magnitude of ∮B．ds, in
terms of μ0 and i, at a radius r = R/5 from their center? 10%
8. Expalin th meaning of (a) diamagnetism and (b) paramagnetism. 10%
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 118.168.41.205