(1)如图甲是他们设计的电路图,图乙是他们测量电流时连接的实验电路,此时电流表测量的是
(2)请在图乙中移动一根导线,测量另外一处的电流.在移动的导线上画“×”,并用笔画线代替导线连接正确的电路
(3)测出A、B、C三处的电流如表所示,由此得出初步结论:
位置 | A | B | C |
电流/A | 0.30 | 0.24 | 0.54 |
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2