to find current,charge,time interms of charge ,current,time:
to find current (I)= charge(Q)/time(t)
to find charge (Q)= current (I) x time (t)
to find time (t)= charge (q) / currebt (I)
to find resistance,voltage,current interms of resistance,voltage or current:
to find current (I)= voltage (v)/ resistance (R)
to find voltage(V)= Current(I) x rsistance (R)
to find resistance (R)= voltage (v) / Current (I)
formulas got to do with power and energy(workdone):
to find the power(p): voltage (v) x Current (I) (the unit of power is watts)
to find the loss power: square of current x resistance (I^2 x R)
to find energy(E) which is also workdone: voltage (v) x Current (I) x Time (t)
OR
power(p) x time(t) (unit of is joules)
formulas of transformer:
to find number of turns in secondary or primary coils OR the secondary or primary voltage:
secondary voltge (Vs) number of turns of secondary (Ns)
---------------------- = ----------------------------------
Primary voltage (Vp) number of turns of primary (Np)
to find voltage or current in an 100% efficient trnasformer=
voltage in primary(Vp) x current in primary(Ip) = voltage in secondary(Vs) x current in secondary(Is)
OR
power in primary = power in secondary (cuz voltage(V) x current (I)= power)
more resistance formula:
to find total resistance aranged in SERIES : just add all resistance (R1+R2+R3),etc
to find tpatal resistance where resistors are arange in parallel : just add 1/r
(1/R1 + 1/R2 + 1/R3 = 1/R) etc then at the end reverse it by making 1/R to R/1 to get (R) resistance
and no formulas for CRO
well thts all i guess
any confusion or help u need just ask me