The colour coded resistance of carbon resistance is (initial three bands are red and fourth band is silver)

Options

A. `222Omega+-10%`
B. `2200Omega+-10%`
C. `333Omega+-5%`
D. `33000Omega+-10%`

Explanation

To determine the resistance value from the color-coded bands of a carbon resistor, we will follow these steps:

### Step-by-Step Solution:

1. **Identify the Colors**: The resistor has the following color bands:
- First band: Red
- Second band: Red
- Third band: Red
- Fourth band: Silver

2. **Refer to the Color Code Chart**: We will use the standard color code chart for resistors:
- Red corresponds to the number 2.
- The third band (multiplier) also needs to be considered.

3. **Determine the Value from the First Two Bands**:
- The first band (Red) gives us the first digit: 2.
- The second band (Red) gives us the second digit: 2.
- Therefore, the first two bands together give us the number: 22.

4. **Determine the Multiplier from the Third Band**:
- The third band (Red) indicates a multiplier of \(10^2\) (which is 100).

5. **Calculate the Resistance**:
- Combine the digits obtained from the first two bands with the multiplier:
\[ \text{Resistance} = 22 \times 10^2 = 22 \times 100 = 2200 \, \Omega \]

6. **Determine the Tolerance from the Fourth Band**:
- The fourth band (Silver) indicates a tolerance of ±10%.

### Final Result:
The resistance value is **2200 Ω** with a tolerance of ±10%.

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