What is the effect of increasing the loop voltage in a 4 to 20 mA loop?
A. Increases loop impedance
B. Decreases loop impedance
C. Increases loop current
D. Decreases loop current
Answer:C
What is the effect of increasing the loop voltage in a 4 to 20 mA loop?
A. Increases loop impedance B. Decreases loop impedance C. Increases loop current D. Decreases loop current
Explanation: Increasing the loop voltage in a 4 to 20 mA loop increases the loop current. This is because the transmitter is designed to provide a fixed current output, and the loop voltage determines the voltage drop across the load. As the loop voltage increases, the voltage drop increases, which increases the loop current.