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How do you convert 12V to watts?

in Electrical Engineering

How do you convert 12V to watts?

1 Answer

To convert 12V to watts, you need to know the current (in amperes) that the device or circuit is drawing. The formula to calculate watts (P) is:

\[
P = V \times I
\]

Where:
- \(P\) is power in watts (W),
- \(V\) is voltage in volts (V),
- \(I\) is current in amperes (A).

### Example:
If you have a 12V system and the current is 2A, the power in watts would be:

\[
P = 12V \times 2A = 24W
\]

So, in this case, the power is 24 watts.

If you don't know the current, you can't directly convert voltage to watts because watts depend on both voltage and current.

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