Ohm's Law

The voltage across a 2.2 komega.gif resistor is ___ if 3 mA of current is flowing through it.

A 6.6 V

B 7.33 V

C 1.4 V

D 0.8 V

ANS:A - 6.6 V

V = IR.
V = (3*10^-3)(22*10^2).
V = 66*10^-1.
V = 6.6V.

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