Question

what is the value of resistance ,if a carbon resistor having blue,red colour code ad blue, red and green respectively?
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Answer 1

Answer:

The total resistance of resistors connected in series is the sum of their individual resistance values. ... For example, a 10 ohm resistor connected in parallel with a 5 ohm resistor and a 15 ohm resistor produces 11/10 + 1/5 + 1/15 ohms of resistance, or 3011 = 2.727 ohms.

Red is 2, black is 0, blue is 6, and for tolerance, gold means 5%.

So 20x10e6 or 20M ohms at 5%.