One Nano Ampere is equal to ?

Options

A. `10^(-9)A`
B. `10^(-6)A`
C. `10^(-12)A`
D. `10^(-8)A`

Explanation

To solve the question "One Nano Ampere is equal to?", we can follow these steps:

### Step 1: Understand the Prefix "Nano"
The prefix "nano" is a metric prefix that denotes a factor of \(10^{-9}\). This means that when we say "nano" in front of any unit, we are referring to that unit multiplied by \(10^{-9}\).

### Step 2: Identify the Unit
In this case, we are dealing with "ampere," which is a unit of electric current. Therefore, "nano ampere" refers to a current measurement.

### Step 3: Convert Nano Ampere to Ampere
Using the definition of the prefix "nano," we can express "1 nano ampere" mathematically:
\[ 1 \text{ nano ampere} = 1 \times 10^{-9} \text{ ampere} \]

### Step 4: Write the Final Answer
Thus, we conclude that:
\[ 1 \text{ nano ampere} = 10^{-9} \text{ ampere} \]

### Conclusion
The answer to the question "One Nano Ampere is equal to?" is:
\[ \text{1 nano ampere} = 10^{-9} \text{ ampere} \]