Atechnician connects one lead of a digital voltmeter to the positive ( ) terminal of the battery and the other meter lead to the battery terminal (b) of the starter solenoid and then cranks the engine. during cranking, the voltmeter displays a reading of 878 millivolts. technician a says that this reading indicates that the positive battery cable has too high resistance. technician b says that this reading indicates that the starter is defective. which technician is correct

a. technician b only
b. technician a only
c. both technician a and technician b
d. neither technician a nor technician b

Technician A only

Explanation:

The true resistance of a circuit is shown by voltage drop since high voltage drop indicates high resistance while low voltage drop shows low resistance of a circuit. For our case in the question, the voltage drop should not exceed 200 millivolts during cranking but we realize a reading of 878 millivolts in the voltmeter, a clear indicator of high resistance. This implies that the positive battery cable has too high resistance but not a sign of defect in the system. Therefore, technician A is correct.

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