Two bulbs of 500w and 200w rated at 250 v will have resistance ratio as ?
Answer Posted / shyam kuma
P=V^2/R
V=Constant
So ratio will be 2:5
| Is This Answer Correct ? | 79 Yes | 10 No |
Post New Answer View All Answers
Please help me regarding my one concern. - During earth pit testing we noticed that the Clean earth pit and dirty earth pit showing continuity (Resistance value - 5ohm) . I want to know that if both earth pit have separate location and there is not internal looping between PIT then why such continuity is showing on it . Because of this issue the field side all earthing point showing short. In PLC panel we are providing two types of earthing cable which is coming from separate earth pit (Clean and Dirty earth pit) because of earth PIT showing short our PLC is not complying spec . please help regarding this issues.
how slip power recovery system work
how many types of motor can be used in washing machine
Explain dc generator with its types?
What are the applications of autotransformers?
What is knee point voltage?
sir, what is the importance of Fault MVA. how to calculate fault mva of 33kv substation connected by 6.5 km line(single circuit with equal spacing) with 110/11kv transformer in 110kv susbstation.the fault mva on 11 kv bus in 110kv susbstation is 208mva.
What is the operating principle of turbo-generator.
Why neutral is not used in three phases dol starter
Explain what are inter-poles and why they are required in a dc machine.
what is Anti-pumping?
by what factor the starting current is used when comparing star and delta connection for motor starting?
To prove the capacity of a 10MVA transforemr with 6.5% impedance by a short circuit test how much power is needed to inject an impedance voltage if we have to arrive for its rated current?
132/66kv sub-station procation ?
What is an automatic controller?