Question
Question: A carbon resistor is marked with the rings coloured brown, black, green and gold. The resistance (in...
A carbon resistor is marked with the rings coloured brown, black, green and gold. The resistance (in ohm) is –
A
3.2 × 105 ± 5%
B
1 × 106 ± 10%
C
1 × 107 ± 5%
D
1 × 106 ± 5%
Answer
1 × 106 ± 5%
Explanation
Solution
Brown A = 1 \R = (AB × 10C ± x%) W
Black B = 0 = (10 × 105 ± 5%) W
Green C = 5 = (106 ± 5%) W
Gold x = 5%