AC Flashcards
1
Q
MEAN VALUE OF ac
A
the value of steady current which would sent the same amount of charge thru a crk in a half cycle as is sent by AC
2
Q
Root mean value of AC
A
the value of DC which would generate the same amount of heat in a given R in a fiven time as is done by AC in the same resistance in the same time
3
Q
wattless current or idle current
A
the current which consumes no power for its maintenance
4
Q
which all circutis show watt less current
A
inductive and capacitive
pavg= 0 as
pavg= ErmsX Irms X cos 90
5
Q
which reactive element
lead current byπ/2
lag current byπ/2
A
- capacitor only crk
- inductor only crk
6
Q
acceptor crk
A
if several voltages having diff freq are subjected to a series LCR crk, the crk responds most readily to tat FREQ which matched with wr or resonance frequency allowing only that voltage
