Interested to Buy Any Domain ? << Click Here >> for more details...
heat can flow from a body at low temperature to a body at
higher temperature only when ........ is supplied from an
external source
A). Voltage B). Current C). work D). Mass
- 7 Answers
- 9341 Views
- BMRCL, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / prasd
according to thermodynamic,the heat can flow from low
temperature to high temperature by external work. for
example air conditioner
| Is This Answer Correct ? | 22 Yes | 4 No |
Answer / ajeet
its "B" Electric...
Thermo electric devices do this. Thermo electric devices "pull heat" to one side and leave the other side cooler. Radiating the heat from the hot side causes the cool side to become cooler. Some computer heat-sinks are made from this stuff, DC powered drink coolers are often made from this. In inverse you can generate electricity by adding heat to one side and cooling it on the other, I think it's Mercedes that's experimenting with replacing alternators with this stuff.
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / parth
the correct answer would be (d) mass.
see, when you put a hot iron rod in water, it will transfer
its heat to the water and cool down, without providing any
voltage, current or doing any work on it. the only thing
required is a sufficient amount of water. so sufficient
Mass of water is required.
| Is This Answer Correct ? | 3 Yes | 9 No |
Why the substation measure in KV but not in the power ratings of transformer.
IN MY SYSTEM THERE IS ONLY OVER CURRENT EARTH FAULT RELAY IS AVAILABLE. FOR THE UNBALANCE SENSING IS THERE ANY RELAY IS AVAILABLE? THE SAME CTs WHICH ARE USED FOR THE OVER CURRENT EARTH FAULT RELAY CAN USE FOR UNBALANCE ALSO?
What Is Sampling?
0 Answers Mahatma Gandhi University,
transformer phasor diagram under load explain it?
If I want to connect a capacitor bank on the HT side of a 11kV/415V, 3 phase delta-star distribution transformer to supply Reactive power to it..what practical specifications of a Capacitor bank that can i've??please reply..
How does ELCB work when exist earth foult? and How does RCCB work when exist earth foult?
HOW TO MEASSURED THE AMPS RATING FOR SUITABLE CABLE SIZE?
why aggregate is placed all around substation ground.
in house wiring when two wires are same colour coding and there is no any connection one end how to find which wire is earthing wire
In a 3 phase 4-wire system. For a 3.5 core cable if all loads are single phase and balanced, what will be neutral current? will it be sum of all phase currents? Or it will be zero? And if loads are unbalanced what will be neutral current?
any idea abt REVERSE METERING concept.........?
dear friends plz send link about reluctance & universal motor .thank u
-
Civil Engineering (5086) - Mechanical Engineering (4456)
- Electrical Engineering (16639)
- Electronics Communications (3918)
- Chemical Engineering (1095)
- Aeronautical Engineering (239)
- Bio Engineering (96)
- Metallurgy (361)
- Industrial Engineering (259)
- Instrumentation (3014)
- Automobile Engineering (332)
- Mechatronics Engineering (97)
- Marine Engineering (124)
- Power Plant Engineering (172)
- Textile Engineering (575)
- Production Engineering (25)
- Satellite Systems Engineering (106)
- Engineering AllOther (1379)
