The current though a branch in a linear network is 2A when
the input voltage is 10 volts. If the voltage is reduced to
1 volt, and the polarity is reversed, what is the current
flowing through the branch ?
Answers were Sorted based on User's Feedback
Answer / iamdon
From the first statement of line..
Resistance of branch=10/2=5 ohm
Current flowing through the branch=1/5=0.2A
|Is This Answer Correct ?||6 Yes||5 No|
Answer / michael
R = V/i = 10/2 = 5 ohms
Inew = 1volts/5ohms
Inew = .2A
note: if the polarity is reversed I = Inew X 2
so I = .4A
thats is the correct answer..
if there is a word "polarity is reversed
multiply the current by 2
|Is This Answer Correct ?||3 Yes||3 No|
HOW TO SET THE EARTH FAULT SETTINGS IN ACB????????????
What is the use of insulation tester and how it is to be used.
WHAT IS THE HIGHEST UNDERGROUND TRANSMISSION VOLTAGE IN THE WORLD?
What is load boxes ?
What is the suitable rating of MCB for 1.5 Ton A.C and why? 1Ton= how many amperes?
Why did call copper as a electrical conductor?
How to make vector group test of transformer?
We have one 500KVA transformer. We have tested REF relay and commissioned. After one and half year, due to some ground fault in one of the DB circuit Transformer tripped by REF relay. What will be cause and remedy. Please advise?
how can we make cable shedule for controll wiring ? which details must be required for it.?
present we are having 0.8pf but I want increase it up to 0.99 so what is the formula for it and how can i calculate?
How to run a three phase motor into single phase........
why phase to phase voltage is 400v while phase to neutral is 220v?