What is the voltage drop across a 500 ohm resistor in a 4 to 20 mA loop?
A. 2 V
B. 10 V
C. 16 V
D. 20 V
Answer:B
What is the voltage drop across a 500 ohm resistor in a 4 to 20 mA loop?
A. 2 V B. 10 V C. 16 V D. 20 V
Explanation: The voltage drop can be calculated using the formula Resistance x Current. Plugging in the values gives 500 ohms x 0.02 A = 10 V.