What would happen if a power transformer designed for operation on 50 Hz (frequency) were connected to a 5 Hz (frequency) source of the same voltage?

Transformer may start to smoke

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Eddy current loss and hysteresis loss will be excessive.

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No effect

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Current will be too much low.

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Solution

The correct option is A Transformer may start to smoke
$Flux = \frac{Voltage}{Frequency}$

If f is decreased then flux is increased
flux $↑$ then B $↑$
As flux density is increased, large current will be flown through transformer primary and transformer may start to smoke.

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What would happen if a power transformer designed for operation on 50 Hz (frequency) were connected to a 5 Hz (frequency) source of the same voltage?

The correct option is A Transformer may start to smokeFlux=VoltageFrequency If f is decreased then flux is increased flux ↑ then B ↑ As flux density is increased, large current will be flown through transformer primary and transformer may start to smoke.

The correct option is A Transformer may start to smoke
$Flux = \frac{Voltage}{Frequency}$

If f is decreased then flux is increased
flux $↑$ then B $↑$
As flux density is increased, large current will be flown through transformer primary and transformer may start to smoke.