A 200W,230V lamp is connected across 115V supply.The lamp will
draw power?
- 6 Answers
- 30908 Views
- SJVN, TCS, I also Faced
- E-Mail Answers
Answer Posted / satheesh
The above answer is also wrong and Ist answer i
correct.Since the bulb is rated for 230 V and the power is
200W only at rated voltage.So the resistance is constant for
this rating.v2/w=230^2/200=264.5 ohms.If we apply 115 V also
this resistance will not vary.So the current drawn at this
time is v/R=I=115/264.5=0.435A=So definitely power = V*I
115*.435=50 Watts.
| Is This Answer Correct ? | 21 Yes | 16 No |
Post New Answer View All Answers
What is difference and reason b/w -48V BTS system and 24 V BTS system. Plzzzzzzzzz tel me.
how to calculate the earth mat design in 132 kv substation yard ????
Why in 6 KV XLPE cable termination kit used and why not in 380 V xlpe cable same is not used
how oti and wti connections are different from each other?
What Is HO factor in power selection
raleigh method
How can calculate the rating of a alternator for a given specific load with formula
what is mathed of check the D.C MOTOR 181 KW (ARMATURE AND FIELD) WHAT IS THE MATHED OF CHECK THE THYRISTOR MODULE (HIGH CURRENT)
What is the difference between earthing,ground&nutral?
Why 3 phase induction motor getting supply in body if one of it's phase is cut
what is the meaning of osr in transformer.
In power transmission using open belts or horizontal shafts it is preferable to have the slack side of the belt on the top because
can indirect loading be called as phantom loading?
Is there any guideline say about display of earthing value near to earth pit
State the frequency for rc phase shift oscillator?
