The Question
A single phase transformer has the following rating: 120 kVA,
2000 V/100 V, 60 Hz with 1000 primary turns.
Determine:
(A) the secondary number of turns
(B) the rated currents on the primary and secondary
(C) The maximum flux
(D) given a maximum flux density of 0.25 T, the...
A circuit has a power factor 0.72 lagging and the power dissipated is 375w.
Determine:
(A) Apparent power
Relevant equations:
ohms law V = I x R
apparent power (S) = supply voltage (Vs) x Current (I)
Attempt:
Current =
Voltage
Resistance
120v
10Ω
= 12Amps
∴...