Question

A 47 Kohm resistor would have which colours on its first three bands?

1) red, white, blue
2) yellow, violet, white
3) orange, yellow, violet
4) yellow, violet, orange

Answer 1

The first three color bands on a 47 Kohm resistor are 2. yellow, violet, orange, representing the digits 4, 7, and the multiplier x1000 respectively.

Step-by-step explanation:

A 47 Kohm resistor would have the color bands yellow (4), violet (7), and orange (x1000 multiplier) as its first three bands. Therefore, the correct answer is yellow, violet, orange.

Resistors use a color-coding scheme to indicate their resistance value. The first two bands represent the first two significant digits of the resistor's value, while the third band represents the multiplier, which is the power of ten to multiply the two significant digits by.

For a 47 Kohm resistor, the first digit is 4 (yellow), the second digit is 7 (violet), and the multiplier is 10^3 or 1000 (orange), making the resistance 47 x 1000 ohms, which equals 47000 ohms or 47 Kohm.