Is each of the following statements true or false No explana
Is each of the following statements true or false? No explanation is needed. An ideal diode allows current in only one direction. A highpass filter will block the DC component in the input signal. A digital signal is a discrete-valued signal that can be in either continuous time or discrete time. If h(t) is the impulse response function of a noncausal linear time-invariant system, then it must be true that h(t) notequalto 0 for some t
Solution
(a) True ,only conducts in Forward Bias condition in one direction
(b)True High pass filter allows high frequency signals and eliminates low frequency signal as DC is 0 Hz zero frequency it block DC component
(c)False Digital signal means dicretized in both time and magnitude ,so it cannot be in continuous time
(d)True impulse response h(t) =0 for a causal system for t<0 and for noncausal system it is not true
i.e h(t)!=0 for t<0
(e) False :Induction Motor shaft speed is always less than synchronous speed with some slip for its working
(f) False : The winding also should wound for 3 phase and properly arranged and the balanced 3 phase currents will produce rotating magnetic field
