The resistance of a colour-coded carbon resistance is 670 Omega` . Find the colour of second band of the resistor.

Answer

To determine the color of the second band of a color-coded carbon resistor with a resistance of 670 Ω, we can follow these steps:

### Step 1: Convert the Resistance to Standard Format
The resistance value of 670 Ω can be expressed in the standard format used for color coding. This is done by writing it as:
\[ 670 \, \Omega = 67 \times 10^1 \, \Omega \]

### Step 2: Identify the Significant Figures
In the standard format \( 67 \times 10^1 \):
- The first significant figure is 6.
- The second significant figure is 7.
- The exponent (1) indicates the multiplier of \( 10^1 \).

### Step 3: Determine the Colors for Each Significant Figure
Using the standard color code for resistors:
- The color for the first significant figure (6) is **Blue**.
- The color for the second significant figure (7) is **Violet**.
- The color for the multiplier (1) is **Brown**.

### Step 4: Identify the Color of the Second Band
Since we are interested in the color of the second band, which corresponds to the second significant figure (7), the color is **Violet**.

### Final Answer
The color of the second band of the resistor is **Violet**.

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