v=r*i this means when voltage increases current also
increases at constant resistance....
p=v*i this means when voltage increases current decreases to
maintain the power constant
which one is true...
Answers were Sorted based on User's Feedback
Answer / karthik raman.b
both r correct first case we can assume without load....second case we can assume with load the current is depends on the load if the load is increased the voltage drop will be high
| Is This Answer Correct ? | 4 Yes | 1 No |
Answer / indra narayan chakraborty
the first statement is correct. When voltage increases current also increase at constant resistance.But the second statement is not true because current does not decreases instead the device burns out or the voltage can be maintained constant to maintain constant power.
| Is This Answer Correct ? | 4 Yes | 3 No |
Answer / jahanbaz
Both are correct the first formula is for the voltage drop
while the second formula is for power.
1.if you increase current while maintaing the resistance
constant the voltage drop across it will increase or in
other word if you vary resistance while maintaing the
current constant the voltage drop will again vary.
2 for this case if u increase voltage maintaing the current
constant the power is increased or if u increase the current
while maintaing the voltage constant again u increase the power.
think a little bit about this matter and u will understand
the things with yourself
| Is This Answer Correct ? | 1 Yes | 0 No |
What is the suitable rating of MCB used for 1.5 Ton A.C & why?
What happens when two positively charged material is placed together?
Define coil span?
how much flux density of CRNO core
what is excitation system explain in detail with its working?
WHAT IS MEAN BY MAGNETIC LOCKING
why we test the core balance of the transformer?
1 unit or 1 kwh means how much kva
my project load is 6 MW so please suggest the size of cable.. ALU 3c 400 aqmm cable can be sufficient.. is there any thumb rule for calculation of cable size please help me
what is range ACB
Why annealing is done on transformer core manufacturing process?
What are the types of transformers according to the arrangement of iron cores?
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)