• 2022-06-01
    如图所示,在点电荷+q的电场中,若选取图中P为电势零点,则M点的电势为[img=223x90]1803b51b1fb291b.png[/img]
    A: [img=44x42]1803b51b280495a.png[/img]
    B: [img=44x42]1803b51b3024ab2.png[/img]
    C: [img=60x42]1803b51b38f2ce0.png[/img]
    D: [img=60x42]1803b51b4148d5c.png[/img]
  • 举一反三