An ammeter must be connected in what manner with the load?

• A. Parallel
• B. Series
• C. Voltage drop
• D. None of the above

Answer: (B)

An ammeter must be connected in series with the load in order to measure the current flowing through that load accurately. When placed in series, all the current that flows through the circuit will also flow through the ammeter, allowing it to give a direct reading of the current in amperes. This direct connection is crucial because if the ammeter were connected in parallel, it would create a short circuit, potentially damaging the ammeter and causing incorrect readings, as not all the current would pass through the ammeter.

In practical applications, ensuring that the ammeter is in series with the load enables effective and safe current measurement without altering the circuit's operation. Thus, connecting the ammeter in series is necessary for proper function and accurate measurement in electrical circuits.