Answer Posted / t.venkateswarlu

EMF(Electro Motive Force) is the voltage,that is converted from any other form of Energy to Electrical.For example,emf is used with Batteries, Generators, Motors (Back Emf).

Potential Difference between two points means difference between Potentials of two points.

What will happen if the voltage in my house drops from 220V to any lower voltage?

2120

---

Determine a suitable number of slors and conductors per slot for the starter 1 winding of a 3 phase, 3300 V. SO Hz 300 rpm alternator. The diameter is 2.3 m

2764

---

I am a electrical engg. diploma holder,applied for junior engineer (electrical),Kolkata RRB. Have I to attend all electrical,mechanical&civil portion in written exam.???

15567

---

we have a rewind motor of 2Hp,2800Rpm, 220Volt AC. how can we choose the running capacitor for this motor, any formula for that?

1863

---

How can I model an open-delta ground transformer for a network supplied by 4 unit GTG and power transformer in ETAP?

13700

---

If we want to change a contactor of faulty one what are the conditions want to fullfil

1939

---

11kV capacitor bank of rating 2.4KVAR, is charged with protective relays of only over current & Earth fault &.......without Over Voltage, Under Voltage & Neutral Displacement Relay. Is it advisable??

1551

---

What is the difference between resistance grounding system and resistance earthing system?

1027

---

what types of electrical & mechanical test conducted in switchyard?

2144

---

how to calculate the change over time for star delta starter for different KW motor?

4174

---

In hydel power plants, L.A's, S.C's are placed inside the control panel boards. what is the purpose? [already the total body was earthed to ground.]

1934

---

How can we calculate the motor frame sizes?

3360

---

What is the formula of frequency ?

1405

---

What is deference between MCB & MCCB & ISOLATOR

2047

---

What is the lower limit of break-down voltage of converter transformer.

1855

---