Question 128Electricity & Electronics - Assistant Engineer

The correct answer is B) an extended meter range. When a resistor is connected in parallel with a meter movement coil, it acts as a shunt, allowing a portion of the current to bypass the meter. This effectively extends the meter's measurement range, allowing it to measure higher current levels than it could on its own. The shunt resistor diverts some of the current away from the meter, enabling the meter to measure higher current levels without being damaged. The other options are incorrect. A resistor used as a shunt does not measure circuit resistance (A), nor does it increase the accuracy of the meter (C). Connecting a shunt resistor in parallel with a meter movement coil is a common practice to extend the meter's range (B), and is not something that is "never done" (D).