Answer / nizam

As we know,ammeter is used for measuring current in a circuit.In order to to this first current has to enter the ammeter.From the well known theory that current always choose low resistance path,in order to measure it accurately,manufacturers put it to zero(0).

Answer / prathiba

I think that for an ideal ammeter resistance value is zero.
From ohms law ,V=IR=>I=VR.since R=0,so current is infinity.
Similarly for ideal voltmeter their is no voltage drop across it,so voltage is zero.

What is the Difference Between MCCB & ACB & VCB

3 Answers  

---

how to calculate the loss tangent of electrical cables

0 Answers  

---

What is electrical charger?

3 Answers   HCL,

---

why transformer rating is always in KVA

7 Answers   GNG, NTPC,

---

What is the difference between multimeter

0 Answers  

---

IN CABLE TRENCH WHY FILL UP THE SAND. AND WHAT IS THE DIFFERENCE BETWEEN OVER HEAD AND UNDER GROUND LAYING THE CABLES

2 Answers   Cable Wireless,

---

what is a difference berween line voltage and phase voltage?

2 Answers  

---

Is single load(eg: three phase motor) having all the components like positive,negative,zero sequence components during fault condition?

0 Answers  

---

How many VSC based HVDC are there in India and the world

0 Answers  

---

Why we are not placing c.B 's btwn generator and transformer.? what happens when generator gets disconnected from transformer when it is running @ full load?

3 Answers   Areva,

---

why capacitor using the induction motor?

5 Answers  

---

Whay you want to change your job.

1 Answers  

---