can we use 7volt DC BATTERY to run a 60watt motor by
stepup? Give reason for your answer?
Answers were Sorted based on User's Feedback
Answer / shreyash
my friend it is not truely right that DC cannot be steped
up
here it is not mentioned that r we using transformer or not.
DC cannot be steped up by transformwer but can be steped up
by CHOPPERS.
but still i dont think that a 7 volt battery can run a 60
watt motor because if it is converted to AC & then steup up
than also i don't think it can feed 60 watts.
Is This Answer Correct ? | 12 Yes | 0 No |
Answer / rvg.msceb
this is very basic question. DC cannot be steped up with
transformer.
Is This Answer Correct ? | 15 Yes | 5 No |
Answer / lmn
If use relay, can run 60 W motor. An electrically operated
switch, for example a 9V battery circuit connected to the coil
can switch a 230V AC mains circuit.
Is This Answer Correct ? | 3 Yes | 1 No |
In this question it is not mentioned that what is the AH
(ampere hour)rating of battery. If we assume that battery is
20AH and 60w motor is running on ac 220v. So motor need
0.273amp.if we invert 7v dc into 220v ac then this motor
definitely run.
more info and online earning:
http://a2zengineering.blogspot.com/
Is This Answer Correct ? | 2 Yes | 1 No |
what are the protection for DG set and why?
What is the difference between line Distance protection and Line Earth Fault Protection?
what would the resistance of a 110v 150w submersiblepump motor windings be
take 100kva DTR( delta/wye ), what ll happen if we connect 11kv to LT side instead of connecting to HT side? will the DTR behave as a step up transformer or something else????
What is the difference between diesel generator engine with and without turbo charger with the same capacity?
why capacitors cant used in genset to maintain power factor..??
How to convert KVA rating into HP rating?
why maintain the Dg PF is 0.8? Explain?
we have two generators different capacity on 15 MW and other 6MW at 11 KV , 15 MW gen. bus short level current 40KA,and 6MW short level current 25KA,, length of cable 100MTR between 6 MW from 15MW gen. for bus coupling . kindly tell any one can we use both NGR OR one NGR from any GEN. BOTH NGR has diff. rating. Tariq pakistan
how many joint can done in HT line and what is life of the joint
0 Answers Micro Labs, Reliance,
HAI SENT HPCL APTITUDE QUESTION PAPER, MY EMAIL ID IS angus_eee04@rediffmail.com,angus_eee04@yahoo.com
Why induction motor can not be operated at synchronous speed?? what would happen if it is operated at synchronous speed??