电源US=14V,R0=2Ω,外接负载RL,则RL=(____)时,负载上获得最大功率PM=(____)。
A2Ω$;$0Ω$;$98W$;$24.5W
B2Ω$;$0Ω$;$98W$;$24.5W
C2Ω$;$0Ω$;$98W$;$24.5W
D2Ω$;$0Ω$;$98W$;$24.5W
A2Ω$;$0Ω$;$98W$;$24.5W
B2Ω$;$0Ω$;$98W$;$24.5W
C2Ω$;$0Ω$;$98W$;$24.5W
D2Ω$;$0Ω$;$98W$;$24.5W