A current of 0.5A is drawn by a filament of an electric bulb for 20 minutes. The amount of electric charge that flows through the circuit is

Options

A. 1 C
B. 10 C
C. 600 C
D. 300 C

Explanation

To find the amount of electric charge that flows through the circuit, we can use the formula:

\[ Q = I \times t \]

where:
- \( Q \) is the electric charge in coulombs (C),
- \( I \) is the current in amperes (A),
- \( t \) is the time in seconds (s).

### Step-by-Step Solution:

1. **Identify the current (I)**:
The current drawn by the filament of the electric bulb is given as \( I = 0.5 \, \text{A} \).

2. **Convert time from minutes to seconds**:
The time given is 20 minutes. We need to convert this into seconds.
\[ t = 20 \, \text{minutes} \times 60 \, \text{seconds/minute} = 1200 \, \text{seconds} \]

3. **Substitute the values into the formula**:
Now we can substitute the values of current and time into the formula for electric charge.
\[ Q = I \times t = 0.5 \, \text{A} \times 1200 \, \text{s} \]

4. **Calculate the electric charge (Q)**:
\[ Q = 0.5 \times 1200 = 600 \, \text{C} \]

5. **Final Answer**:
The amount of electric charge that flows through the circuit is \( Q = 600 \, \text{C} \).