Question

Define the S.I. unit of electric current.

Hint:

Current is measured using an ammeter connected in series in a circuit.

Answer 1

Step 1: Understanding the Concept:
Electric current is the rate of flow of electric charge.
Step 2: Detailed Explanation:
The S.I. unit of electric current is the Ampere (A).
One Ampere is defined as the flow of one Coulomb of charge through a cross-section of a conductor in one second.
\[ 1 \text{ Ampere} = \frac{1 \text{ Coulomb}}{1 \text{ Second}} \]
Step 3: Final Answer:
The Ampere is the unit representing a flow rate of \( 1 \text{ C/s} \).