what is the back ground of transformer working? applying
voltage to primary and emf inducing in primary and
secondary? how it is possible? please answer me with
scientific approach?
Answer Posted / t.k.
Trasformer workes on the law of faraday emf= -dǾ/dt or you
can say principle of maganitic induction.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
If a 3 phase induction motor is in off condition in the conveyor and rotor of the motor keeps moving with the conveyor than the resistance of windings of motor varies. why is it so ??
how we can calcultae the short circuit level for bus bar
state the working of discharge lamp?
how to copy from plc ge fanuc versamax series,all input and output, adress, and printout.
what can be the causes of capacitor start motor having a higher current that its actual
What is the use of iron core in a transformer?
How the over load setting for HT Motors calculated-provided in Numerical Relay
can anyone send me some sample question regarding power grid corp
In the magnetic fluxes, what is the role of armature reaction?
I want to know Electrical Circuit?
what is the difference between electrical and electronic choke?
No load tap changing transformer working
if 12v battery get discharged for 2 months after if we put charge it will charge again?how much time it will take to charge?
What does quality factor depend on in resonance?
1- XC and the RC time constant are both measures of the reaction of C to a change in ____? 2-The power factor is a numerical ratio with a value between 0 and 1 equal to the ______________ of the phase angle. 3-When V and I are out of phase because of reactance, the product of V times I is called ______________ power 4-For _____________ inductors, the branch currents can be added algebraically. 5- The ______________ power in watts can be calculated as I^2R 6-Calculate XL with L = 30mH and f = 1kHz ( I have Xl=2piFL 2*3.141592653*1kHz*30mH =188 ohms Please check) 7-A parallel RL circuit has the values, R = 5kohms, XL = 5kohms. A voltage source of Vt = 10Vrms is connected in parallel to R and L. Determine the total current, It delivered by the voltage source Vt. 8-A series RC circuit has R = 1Mohm and C = 1microF. How long would it take for the capacitor to fully discharge if it is initially fully charged? 9-A circuit has real power = 300W and an apparent power of 500VA. Determine the power factor and phase angle. 10-The time constant for an LR series circuit is T = 0.1s and R = 10ohms. Calculate the inductance L.