A step-up transformer increases the voltage from the primary coil to the secondary coil while decreasing the current proportionally. This is achieved using a higher number of turns in the secondary coil compared to the primary coil.
5 Must Know Facts For Your Next Test
Step-up transformers are used to increase voltage levels, which makes them essential for efficient long-distance power transmission.
The voltage increase is directly proportional to the ratio of turns between the secondary and primary coils: $V_s / V_p = N_s / N_p$.
The power in an ideal transformer remains constant, so if voltage increases, current decreases: $P = IV$.
Core losses (hysteresis and eddy currents) are factors that affect real-world transformer efficiency.
Applications include electrical substations, x-ray machines, and various electronic devices requiring high voltages.
The coil connected to the output load where increased or decreased voltage is delivered.
Turns Ratio: $N_s / N_p$, where $N_s$ is the number of turns in the secondary coil and $N_p$ is the number of turns in the primary coil; determines how much voltage is stepped up or down.