△Φ |
△t |
△B |
△t |
0.4T-0T |
0.1s |
E |
r+R |
4V |
0.5Ω+1.5Ω |
△Φ |
△t |
△B |
△t |
E |
r+R |
nS△B |
(r+R)△t |
nS△B |
r+R |
nS△B |
r+R |
-0.4T-0.4T |
0.5s-0.1s |
A. | B. | C. | D. |
A.1.5A,向右 | B.1.5A,向左 | C.0.5A,向右 | D.0.5A,向左 |
A.电源的电动势为6.0V |
B.电源的内阻为12Ω |
C.电源的短路电流为0.5A |
D.电流为0.3A时的外电阻是18Ω |
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