Where there is voltage,there must be current.Is this right
or wrong??
Answer Posted / nitin pulastya
I disagreed with "Magbool", He is talking "in case of open circuit,voltage is equal to emf of cell but current is equal to zero" only for an ideal condition but in practically this is not possible, Bcz a little amount of current goes in the Voltmeter circuit. To prove my statement:
If there is a current then definitely there will be a voltage across the medium (resistance). Its OK the input impedance of voltmeter is much high but practically not infinite, therefore some current will go inside the voltmeter.
| Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
what is difference between cpp electrical system and refinery electrical system
why u r living from presentaly working.
I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?
sir, Is their any measuring unit of knoking? please explian?
Damping resistor provided in open delta (tartiary) winding of a measuring PT at the incoming of a MV inverter drive panel is getting heated up. Can any body explain the reasons and suggest the remedy?
can anyone explain 11kV 3core cable megger,hi pot test procedure with connection details?
A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.
What is magneto on a gas generator. how it functions. its out put is d.c or a.c. how it can be checked for correct functioning
how to calculate percentage impedence at 75 deg C at normal tap
In Power cable specification what is U0/U and Um.
Mention how NPN and PNP transistor works?
What are the operation carried out in thermal power station?
What is ferro-resonance in electrical system? Why it occurs and what are measures to prevent it?
What is the difference between PLC and Embeded system
i am gng to visa interview this july i have 4 backlogs gre 1010,toefl 75,pls give me the tips pls pls