# How does a voltage generator work?

**Sommaire de notre article**

- How does a voltage generator work?
- How to transform a current generator into a voltage generator?
- How does a heat generator work?
- How to calculate the voltage in a mixed circuit?
- What is the characteristic of voltage generator?
- How to choose your voltage generator?
- What is AC Voltage Generator?
- What is Electric Voltage?

### How does a voltage generator work?

the **operation of a generator** current is based on magnetic induction. When an electric circuit is subjected to a variation of magnetic field or swept by a magnetic field (for example a magnet which turns in front of a coil), this induces a **tension** alternative.

### How to transform a current generator into a voltage generator?

Note: given the points and , the **Power source** and the resistance in parallel on this source constitute a **generator** real of **fluent**that we can **transform** in one **voltage generator** by associating an emf in series with the resistance. We immediately obtain .

### How does a heat generator work?

The generating set is equipped with an engine **thermal** who **works** petrol or fuel oil (diesel). It rotates at a fixed speed through a dynamo (direct current) or an alternator (alternating current). This installation converts energy into electricity.

### How to calculate the voltage in a mixed circuit?

The **tension** across resistor R1 is equal to the **tension** source (U). If we apply Ohm’s law to **calculate** current I1 is obtained: I1 = U/R1; I1 = 32 V/40 ohms hence I1 = 0.8 A.

### What is the characteristic of voltage generator?

Voltage generator symbol and voltage current characteristic (iV). I represented on the symbol of the generator the tension e that the generator imposes, the tension U at its terminals, and the current i which passes. We see on the characteristic that U=e whatever i is.

### How to choose your voltage generator?

Depending on the shape of the signal that we want, we must choose the appropriate generator. The best known forms are the constant and sinusoidal function. Sometimes you may need a square or triangle signal. In practice, we can find the symbol of the voltage generator already seen above, or that represented below.

### What is AC Voltage Generator?

Alternating voltage generator symbol and signal shape over time. Above the symbol, we note V which corresponds to the amplitude of the sinusoid, that is to say its maximum value. The sinusoid is the wave-like curve seen on the right. The voltage goes back and forth between -V and V.

### What is Electric Voltage?

Electrical voltage is a difference in electrical level between two points. Its symbol is: U. It is represented by an arrow outside the circuit between the two points concerned. Note: This arrow is always directed in the direction of the current at the terminals of a generator and in the opposite direction to the current at the terminals of a receiver.