(1)若、两板间电压为,求两板间匀强电场的场强大小和该粒子刚进入磁场区域时的速度大小;
(2)磁场的磁感应强度随时间变化的关系如题15图2所示,其中为已知量,周期。时刻该粒子从孔射入磁场,始终不能穿出右边界,求、两板间电压应满足的条件;
(3)在(2)的条件下,该粒子末与板发生碰撞,求该粒子在磁场中运动的总时间。
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