An electric bulb giving light but at the time of lighting
which one it takes? voltage or current
Answer Posted / vijayakumar.k
We need both voltage and current acoording to the Ohms law
of V=IR,so the bulb glows only of the resistance of the
tungsten..so R=V/I
| Is This Answer Correct ? | 6 Yes | 0 No |
Post New Answer View All Answers
Convert a star connected network into a delta connected network.
what is calculation mathod/formaulla for deciding Size of busbar (Copper/ aluminum)for L.T. panel on Various Fault level like 50kA,25kA,10kA
In electrical what is earth(ground)connection, wht is the importance of it, why it is recomended to maitain below 3VAC between Neutral and earthspecially in PLC used machines?
1))why we run three phase or three different circuit from a single conduit 2)) why not two circuit of different phase run in same conduit?? and why we run same three cicuit of same phae run in single conduit??
how point on wave controller works.
How to select the gauge of wire for winding of motors? How to select number of turns for winding of three phase induction motor?
pre arcing time of ehv breaker
Why transformer used in UPS??
In a voltage-controlled current source A A current booster is never used B The load is always floated C A stiff current source drives the load D The load current equals Isc
A 3-PHASE TRANSFORMER IS USED TO STEP-DOWN THE VOLTAGE OF A 3-PHASE, 11KV FEEDER LINE. PER-PHASE TURNS RATIO IS 12.FOR A PRIMARY LINE CURRENT OF 20A, CALCULATE THE SECOUNDRY LINE VOLTAGE, LINE CURRENT AND OUTPUT KVA FOR FOLLOWING.A)STAR- DELTA.B)DELTA-DELTA.
Earth is a conductor or load?then ammeter connect to 3- phase supply,it shows the measurents or not?
How Can I calculate for the photometrics requirements for a street lighting? Data given are: 45 units of 6 meter light pole with 150 watts metal halide lamp, 220 volts and installed in a promenade area.
The height to which the liquid in a tank to be maintained for a certain constant velocity?
How cmd is calculated in case of energy neters
i have gear oil pump with single phase motor.some time its motor starts running in reverse direction rather than forward direction...whats the reason behind this issue. 1- either capacitor is week? 2- or winding is week?