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



v=r*i this means when voltage increases current also increases at constant resistance.... p=v*i ..

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

v=r*i this means when voltage increases current also increases at constant resistance.... p=v*i ..

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

v=r*i this means when voltage increases current also increases at constant resistance.... p=v*i ..

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

Post New Answer

More Electrical Engineering Interview Questions

Why is it that North America uses 60 hz frequency while Europe uses 50 hz?

4 Answers  


Can we use droop CT in neutral in place of W phase of alternator ?

2 Answers  


what is IMPEDENCE? FORMULE?

6 Answers  


what is auto transformer

3 Answers   IBM,


why we change the direction of winding in rotor ?how we make the north and south pole?

0 Answers  






What is rotary phase converter?

0 Answers  


what is real and reactive power?

2 Answers  


what happen if transformer neutral not earth

2 Answers  


what is the principal of starting of a three phase induction motor.

2 Answers   Moser Baer,


What is the temperature PROFILE OF A FLUID W. R. T. Distance from a sphere to which it is IN CONTACT which is at constant temp.?

0 Answers  


why transmission is only 3 phase and not 2 or 4 or poly phases

0 Answers   Infosys,


For the requirement of a furnace of temperature range up to 1200 oC using silicon carbide rods, What is the required rate of transformer needed (please do it with all details)?

0 Answers   Intel,


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4452)
  • Electrical Engineering Interview Questions Electrical Engineering (16636)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)