An amprobe will read only one conductor at a time.

An amprobe will read only one conductor at a time.

• A. Reads all conductors simultaneously
• B. Reads only one conductor at a time
• C. Reads voltage only
• D. Cannot measure current

Answer: (B)

An amprobe uses a clamp-on sensor that encircles a single conductor to measure the magnetic field produced by the current in that wire. The reading is directly related to the current flowing through that conductor. If more than one conductor is enclosed inside the clamp, their magnetic fields add together and the meter can’t distinguish how much current each wire carries. That’s why it reads only one conductor at a time: you clamp around the specific live wire you want to measure, or separate conductors so only one is inside the clamp. The other options don’t fit because this tool is designed to measure current, not read all conductors simultaneously or measure voltage only, and it can measure current when used correctly.

An amprobe uses a clamp-on sensor that encircles a single conductor to measure the magnetic field produced by the current in that wire. The reading is directly related to the current flowing through that conductor. If more than one conductor is enclosed inside the clamp, their magnetic fields add together and the meter can’t distinguish how much current each wire carries. That’s why it reads only one conductor at a time: you clamp around the specific live wire you want to measure, or separate conductors so only one is inside the clamp. The other options don’t fit because this tool is designed to measure current, not read all conductors simultaneously or measure voltage only, and it can measure current when used correctly.