A 24V transformer with a 40 VA rating can safely operate with a current of what value?

To determine the safe operating current for a 24V transformer with a 40 VA rating, you can use the formula for power, which is expressed as:

Power (VA) = Voltage (V) × Current (A)

Rearranging this formula to solve for current gives:

Current (A) = Power (VA) / Voltage (V)

Substituting the values from the question:

Current (A) = 40 VA / 24 V

When you perform the calculation:

Current (A) = 1.6667 A

Rounding this value appropriately, we find that the transformer can safely operate with a current of approximately 1.67 Amps. This means that the correct answer aligns with the calculated value, confirming its accuracy based on the transformer’s specifications.