Before measuring resistance of a component, be sure: Select one:
a. no other resistance is in series in the circuit.
b. normal circuit voltage is applied across the resistance.
c. no voltage in the circuit.
d. the resistance is disconnected from the circuit at both ends.

answer; insolated i/o uses separate memory space,and on the other hand memory mapped i/o uses memory from the main

answer; (b) agriculture, food, and natural resources;

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