Transformers

**Transformers**
//**Device that alters the voltage of an alternating current.**// Transformers are of imprtance to us because they provide us with increased efficieny and cost effectiveness when it comes to electrical distribution. Like all currents, resistance leads to power loss, and in the case of energy companies, it decreases the range in which electricity can be transmitted cost effectively and also the efficieny, which lead to higher prices. These factors however can be reduced significantly by transmitting currents at high voltages from the generator to the consumer. Using the same principal of electromagnetic induction and reversing the process used in the step-up transformer, the voltages are reduced, ready for safe consumption. On top of that transformers can be used to alter the voltages to suit individual electronic devices, however such transformers are currently usually integrated within the device itself. Np: Number of turns (primary) Ns: Number of turns (secondary)
 * Function**: To increase or decrease voltage for more practical and efficient use.
 * Types: Step-Up (increases the voltage), Step-Down( decreases the voltage).**
 * Types: Step-Up (increases the voltage), Step-Down( decreases the voltage).**
 * Step-Up: Np < Ns
 * Step-Down: Np > Ns

**Transformer Equations** Vs/Vp = Ns/Np

Pl = I2R
 * Power Loss Equation**

R = V/Amps V = Amps x R
 * Ohm's Law**