savvej
Member
In lab experiment on DC power supply,we had to connect output of brigde rectifier to lsection,pi and capacitor filter,and calculate the ripple factor using (Vrms)ripple,which we measured directly by putting Multimeter in AC mode.Our lab assistant(who is just 1 year senior to us) told us that we are measuring Vrms ripple.Is it correct?wont t measure Vrms itself?As in does multimeter have any automatic dc offset adjustment so that it measures only ac component..?
Coz I dont agree with it.
When I connect a 1.5 volt dry cell to multimeter in dc range it measures around 1.58V and when I connect it to AC range it gives amazingly 2.7 volts ??? how is this possible???
definitely there is no dc offset adjustment...also how come it measures 2.7 volts ac for 1.58 v battery??
My multimeter is MASTECH MAS830L
Coz I dont agree with it.
When I connect a 1.5 volt dry cell to multimeter in dc range it measures around 1.58V and when I connect it to AC range it gives amazingly 2.7 volts ??? how is this possible???
definitely there is no dc offset adjustment...also how come it measures 2.7 volts ac for 1.58 v battery??
My multimeter is MASTECH MAS830L