• 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=143x58]18034b847d5016e.png[/img]
    A: [img=44x42]18034b8485c1d88.png[/img]
    B: [img=44x42]18034b848e80252.png[/img]
    C: [img=60x42]18034b8497a18b0.png[/img]
    D: [img=60x42]18034b84a0ad966.png[/img]
  • 举一反三