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Voltage, Current and Resistance

Q1:

The minimum resistance value for a blue, gray, red, silver resistor is

A 612 

B 6,120 

C 6,800 

D 6,460 

ANS:B - 6,120 

Because of 10% tolerance(last color silver), this resistance may vary 10% of 6800. Minimum resistance value = 6800 - 680 = 6120 Maximum resistance value = 6800 + 680 = 7480



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