Question 389Electricity & Electronics - Assistant Engineer

The correct answer is D) In series-parallel. A wattmeter is used to measure the power consumed by a load in an electrical circuit. To accurately measure the power, the wattmeter must be connected in series with the load to measure the current, and in parallel with the load to measure the voltage. This series-parallel configuration allows the wattmeter to determine the power by multiplying the current and voltage measurements. The other options are incorrect because: A) Connecting the wattmeter in parallel would only measure the voltage and not the current, B) Connecting the wattmeter in series would only measure the current and not the voltage, and C) Inductive connection is not a standard way to connect a wattmeter.