1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
长度l(cm) | 10 | 20 | 40 | 10 | 20 | 40 | 10 | 20 |
横截面积S(mm2) | 1.0 | 1.0 | 1.0 | 2.5 | 2.5 | 2.5 | 4.0 | 4.0 |
电阻R() | 20 | 40 | 80 | 8 | 16 | 32 | 5 | 10 |
实验序号 | 型号 | 长度 | 横截面积 | (18) | (19) |
1 | HB | L1 | S1 | | |
2 | HB | L2 | S1 | | |
3 | HB | L3 | S1 | | |
4 | HB | L1 | S3 | | |
5 | HB | L1 | S2 | | |
6 | HB | L2 | S2 | | |
小组 | 实验序号 | 导体的材料 | 导体的长度(米) | 导体的横截面积 (×10-6米2) | 通过导体的电流 (安) |
甲 | 1 | 镍铬合金 | 0.1 | 2 | 0.3 |
2 | 0.3 | 6 | 0.3 | ||
3 | 0.1 | 3 | 0.45 | ||
4 | 0.2 | 6 | 0.45 | ||
乙 | 5 | 铁镍铝 合金 | 0.25 | 5 | 0.2 |
6 | 0.45 | 9 | 0.2 | ||
7 | 0.5 | 5 | 0.1 | ||
8 | 0.9 | 9 | 0.1 |
导体代号 | A | B | C | D ] | E | F | G |
长度(m) | 1.0 | 0.5 | 1.5 | 1.0 | 1.2 | 1.5 | 0.5 |
横截面积(mm2) | 3.2 | 0.8 | 1.2 | 0.8 | 1.2 | 1.2 | 1.2 |
材 料 | 锰铜 | 钨 | 镍铬丝 | 锰铜 | 钨 | 锰铜 | 镍铬丝 |
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