a solenoid of inductance 250mH and resistance 10ohm is
connected to a battery. the time taken for the magnetic energy
to reach 1/4th of its maximum value will be?
Electricty is generated at around 16kV, then step up to 220kV for transmission then steped down to power transformers then DTs and then through the LT n/w it reaches the consumer end. At the consumer end 230V supply is required. So, why is electricity not generated directly at 230V and transmitted?
what is the difference between control transformer and Potential transformer (PT)?
what is the basic construction diffrance between servo motor ans sqiralcage induction motor
What are the main parts of VCB?
What is the thumb rule for calculating the P.F correction Capacitor?? Say for 100 hp motor how much micro farad Capacitor is needed .... Thumb rule so quick answer wanted
When capacitor bank connect on line. It's draw some current but it's current not increase of main line ammeter. Why?
what is ten delta test? what is the significanse of it
How can we calculate the current if we have load in KVA and if the load in KW then what formula will be use for calculating the current. please give both the formula for calculating the current.
If load current is 70amps or 50amps what range of CT to install for ampere metering
whydoes the p.f of diesel generator always be 0.8 explain how will you determine the shortcircuit capacity of network
Is the inductance parameter of transmission line affected by taking the earth into consideration?is the same true for capacitance? Justify the answer.
I need a formula to calculate the size of cable as per load but in the terms of length. Please Reply me as i search lot of sites but i did not get the answer.