Question 7 of 20 A technician is checking a circuit for voltage. In this instance, the voltage reads 4.2v instead of 5v
at the connector. What caused the voltage to read lower than normal?
High current flow
Low resistance
High resistance
High voltage
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High current flow

Explanation:

Generally , the measuring instruments used by technician also have some resistance, though its value is very low  . So when high current is present in the circuit , that current also passes through the instrument which creates a good potential drop across the instrument . So the external voltage used in the circuit measures less voltage .

i already answered it by 34/s