Question 327Electricity & Electronics - QMED

The correct answer is A) Ammeter. An ammeter is designed to measure the current flowing through a circuit. To measure the current, the ammeter is connected in series with the load, but a shunt is connected in parallel with the meter movement. This allows the ammeter to measure the current without significantly affecting the overall circuit. The shunt provides a low-resistance path around the meter movement, allowing most of the current to flow through the shunt rather than the meter, which helps to minimize the voltage drop across the ammeter. The other options are incorrect because a voltmeter (C) is designed to measure the voltage across a load, a wattmeter (D) measures the power in a circuit, and a power factor meter (B) measures the power factor, which is the ratio of real power to apparent power.