Question

A carbon resistance has a following colour code. What is the value of the resistance?
(A) 530 kΩ ± 5% (B) 5.3 MΩ ± 5%
(C) 6.4 MΩ ± 5% (D) 64 kΩ ± 10%

Answer 1

The value of resistance is 5.3 MΩ ± 5 %.

This is because the first two lines cooresopnd to the numbers and the third line is taken as a power of ten and the golden line responds to 5 % error.

Answer 2

Thus the value of the resistance is 530 kΩ ± 5 %

Option (A) is correct.

Explanation:

A carbon resistance has a following colour code. What is the value of the resistance?

(A) 530 kΩ ± 5% (B) 5.3 MΩ ± 5%

(C) 6.4 MΩ ± 5% (D) 64 kΩ ± 10%

Solution:

The color sequence can be obtained from the table.

The resistance is R = ?

Golden = ± 5%

R = 53 × 10^4 ± 5% = 530 kΩ ± 5 %

Thus the value of the resistance is 530 kΩ ± 5 %