Final answer:
A multipurpose transformer utilizes the turn ratio to adjust voltage levels and applies the power equation to determine the maximum output current for each voltage output.
Step-by-step explanation:
Understanding Transformers and Their Operation
A multipurpose transformer functions on the principle of electromagnetic induction, which allows for a change in voltage levels based on the ratio of turns in the primary and secondary coils. When discussing the transformer's capabilities, two key points are the turn ratio to determine the output voltage and the power equation to determine the maximum output current.
Transformer Turn Ratio and Output Voltage
(a) The number of turns in a transformer's secondary coil required to produce specific output voltages can be derived from the primary voltage and number of turns using the formula: secondary turns = (output voltage / input voltage) * primary turns.
Transformer Output Current
(b) Based on the power equation P=VI (Power equals Voltage multiplied by Current), we can ascertain the maximum output currents for each voltage by ensuring the power remains the same on both sides of the transformer. This relationship is also described by the power conservation principle where input power equals output power minus any losses.