power is the product of voltage and current.so we can
measure the value of power just by using ammeter and
voltmeter.......then why do we use a wattmeter?
Answer Posted / sudheer
if we use more no of meters error is more
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What range of speed can you get with the field control method of speed control of d.c. Shunt motor?
In a voltage-controlled current source A A current booster is never used B The load is always floated C A stiff current source drives the load D The load current equals Isc
The electrical energy required to raise the tempreture of a given amount water is 200 kwh. If the heat losses are 20%, the energy required is?
use of PIR in ehv breaker
what is mean by descripiency relay? & wht is its ansi code?
what is the difference between switchgear and circuit breakers and is there any difference between outdoor and indoor switchgear and circuit breakers , and how would you differentiate between switch yard and substation and grid station . thanks
what is zinc diffusion?
what is mathed of check the D.C MOTOR 181 KW (ARMATURE AND FIELD) WHAT IS THE MATHED OF CHECK THE THYRISTOR MODULE (HIGH CURRENT)
What is the range of the stator resistance of 3 phase induction motor?
What is contract demand in solar system?
I am having a 1500 KVA transformer whose secondary current is 2086A and my connected load is 1000 KVA, I am having 400 KVAR APFCR for PF improvement what ratio of CT should i install in LT EB Bus to get optimum PF improvement?
would you please give me any idea about the BARC interview question on electrical? i have an interview on 1st july.....plz hlp me.......its urgent......
What is deference between MCB & MCCB & ISOLATOR
In siemens S7-300 PLC, what is function and function block ? What is the difference between them ? When to use function and when to use function block ?
What is a DC series motor?