Question

魚婷

想問要怎麼判斷這種類型的題目？

試題1
部分答對 得分 0.25/配分1.00
P標示試題
Figure (left) below shows a LC circuit, the top view of the electric and magnetic field inside the capacitor is shown on
the right Figure at some time t. Which of the following statements are corrects for the directions of the electric and
magnetic fields inside the inductor (top view) and the current at this moment in the circuit? (0)
DE
A. The magnitude of the current I is increasing at this moment
OB. E-field is pointing into page
OC. The magnitude of the current I is decreasing at this moment
✓ D. B-field is pointing out of page
✓ E. E-field is counter-clock-wise
X
OF. The current I is clock-wise
OG. E-field is clock-wise
✓H. The current I is counter-clock-wise

Figure (left) below shows a LC circuit, the top view of the electric and
magnetic field inside the inductor is shown on the right Figure at some
time t. Which of the following statements are corrects for the directions of
the electric and magnetic fields inside the capacitor (top view) and the
current at this moment in the circuit?(複選題)
BA
X
X
elle
A. E-field is pointing into page
✓ B.
The current I is clock-wise
✓ C.
B-field is counter-clock-wise
✓ D. E-field is pointing out of page
OE. The magnitude of the current I is decreasing at this moment
OF. The current I is counter-clock-wise
G. The magnitude of the current I is increasing at this moment
OH. B-field is clock-wise
正確答案:
The current I is counter-clock-wise
"
The magnitude of the current I is decreasing at this moment
"
B-field is clock-wise
"
E-field is pointing into page
X

Fig. (a) shows a L-C circuit. The top view of the electric and magnetic field
inside the capacitor is shown in Fig. (b) at time t. Which of the following
statement about the current in the circuit is correct?
(1) The current is counter-clock-wise (c.c.w.) and increasing at time t.
(2) The currentis clock-wise (c.w.) and increasing at this moment.
(3) The current is c.c.w. and decreasing at this moment.
(4) The current is c.w. and decreasing at this moment.
C
L
OF
↑
Fig. (a)
單選:
A. (2) and (4) are correct
B. both of (1) and (3) are possible
O C. (4)
D. all (1) to (4) are correct
E. (2)
F. (1) and (2) are correct
O G. (3) and (4) are correct
H. (1)
(3)
B
Fig. (b)

普通物理

Answer 1

Mr.shawn

看起來是被普物之夜荼毒的朋友