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.
2772What are the test involved in DG auto synchronizing panel before in manufacturing place before dispatch.
2 4442sometime battery charged and then automatically charged when rectifier ON conition, is there any chances please clarify the same.
1 2728sometime battery charged and then automatically charged when rectifier ON conition, is there any chances please clarify the same.
1373Can you please explain creepage distance in detail, for a 6.6kV cable head what must the distance be and how do you determine it?
2331Post New Electrical Engineering Questions
What are the material used for resistor?
how we calculate torque ? how we improve it ?where torque will either motor or generator ?
why voltage form factor of PT are increase , when it is ecpected heigher spikes in system. how it is calculated.
What are the advantages of hydropower?
What the formula for calculating no.of earthings & size of earth strip for 100mX90m shop.
what do w do when the output of generator is fluctuating?
what exactly commisioning work does in electrical site work... LT side?..
why r we using shell transformer for low voltage
HOW TO SELECT THE COPPER CABLE SIZES OF MOTORS,TRANSFORMERS?
what happen when increase or decrease size of lamp,light.glass.
what & how to check the lightning arrester
Define active and passive network?
hai iam arunkumar. i have applied for an section enginner in rrb. i want lat 5 years solved question papers. if u have please sedn it to arun30682@gmail.com
1.how many earth pits are required for 1000 k.w plant include substion , transformer ? 2. how many earth pits are required for 500kva generator.what is formula to calcute?
Is RTCC panel needs any control supply.
