交流信号源的电动势E=10V,内阻R0=800Ω,负载电阻RL=80Ω, 当通过变比为K=10的变压器连接时,则信号源输出的功率为()。A、0.099B、0.0012C、0.0312D、0.4653
交流信号源的电动势E=10V,内阻R0=800Ω,负载电阻RL=80Ω, 当通过变比为K=10的变压器连接时,则信号源输出的功率为()。
- A、0.099
- B、0.0012
- C、0.0312
- D、0.4653
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class Super { public int i = 0; public Super(String text) { i = 1; } } public class Sub extends Super { public Sub(String text) { i = 2; } public static void main(String args[]) { Sub sub = new Sub(“Hello”); System.out.println(sub.i); } } What is the result?() A、 0B、 1C、 2D、 Compilation fails.
交流信号源的电动势E=10V,内阻R0=800Ω,负载电阻RL=80Ω,当负载直接与信号源联接时,信号源输出的功率为()W。A、0.099 B、0.0012 C、0.0312 D、0.4653
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