What is the secondary current in amps if a 120-volt primary transformer has a primary current of 2 amps?

To determine the secondary current of a transformer, you can apply the principle of conservation of power, which states that the power on the primary side equals the power on the secondary side, assuming no losses. The formula can be expressed as:

Primary Voltage x Primary Current = Secondary Voltage x Secondary Current

In this case, the primary voltage is 120 volts and the primary current is 2 amps. Plugging these values into the formula gives us:

120 volts x 2 amps = 240 watts (the power on the primary side).

Now, to find the secondary current, you need the secondary voltage, which is typically lower than the primary voltage in a step-down transformer scenario. If we consider a common secondary voltage of 12 volts (for example) that could be produced by such a transformer, we rearrange the power equation to solve for secondary current:

Secondary Current = Primary Power (watts) / Secondary Voltage.

Using our earlier calculation, if the secondary voltage is 12 volts:

Secondary Current = 240 watts / 12 volts = 20 amps.

However, if you're looking to find a second scenario where the secondary current is derived from different voltages altogether, you could look at the relationship between the current and voltage considering the turns