Question

The rate of flow of electric charge is called:

• A. Electric current
• B. Electromotive force
• C. Potential difference
• D. none of these

Hint:

Remember: Current = Flow of charge per second. Formula: \( I = \frac{Q}{t} \)

Answer 1

The Correct Option is A

Concept: Electric current is defined as the rate of flow of electric charge through a conductor. Mathematically, \[ I = \frac{Q}{t} \] where,

\( I \) = electric current
\( Q \) = charge
\( t \) = time
Thus, current measures how much charge passes through a point in a given time.
Step 1: From the definition, \[ \text{Rate of flow of charge} = \frac{\text{Charge}}{\text{Time}} = \text{Current} \]
Step 2: Checking options:

Electromotive force (EMF) = energy per charge
Potential difference = work done per charge
Hence, the correct answer is electric current.