23) You have to measure the ripple voltage of a DC power supply to confirm with that of the manufacturer's specification. What is the instrument you need for this measurement ?

DC voltmeter

AC voltmeter

Oscilloscope

Vacuum tube voltmeter (VTVM)

Answer is:

Oscilloscope

Series inductor filter

Ripple filter

R.C. filter

choke input L.C. filter

Answer is:

Load current

Half the load current

Twice the load current

One fourth of the load current

Answer is:

32 volt

28.8 volt

14.4 volt

12.0 volt

Answer is:

30.0 volt

27.0 volt

13.5 volt

10.8 volt

Answer is: