When performing a current draw test with an ammeter, what does a reading greater than specified indicate?

When performing a current draw test with an ammeter, what does a reading greater than specified indicate?

• A. Excessive circuit resistance
• B. A decrease in circuit resistance
• C. An open circuit
• D. A decrease in circuit voltage

Answer: (B)

A reading greater than specified on an ammeter during a current draw test indicates that there is a decrease in circuit resistance. According to Ohm's Law (I = V/R), current (I) is directly proportional to voltage (V) and inversely proportional to resistance (R). When the voltage remains constant, if the current reading is higher than normal, it implies that the resistance in the circuit must have decreased, allowing more current to flow. In many automotive and electrical applications, a higher current draw could suggest that components are drawing more power than intended, possibly due to reduced resistance in the wiring or components that may be shorted. This increase in current could lead to overheating and potential damage if the system is not designed to handle it.

A reading greater than specified on an ammeter during a current draw test indicates that there is a decrease in circuit resistance. According to Ohm's Law (I = V/R), current (I) is directly proportional to voltage (V) and inversely proportional to resistance (R). When the voltage remains constant, if the current reading is higher than normal, it implies that the resistance in the circuit must have decreased, allowing more current to flow.

In many automotive and electrical applications, a higher current draw could suggest that components are drawing more power than intended, possibly due to reduced resistance in the wiring or components that may be shorted. This increase in current could lead to overheating and potential damage if the system is not designed to handle it.