What is the recommended practice to prevent the meter from sticking during measurements?

• A. Tap the meter to avoid sticking
• B. Check for a zero error
• C. Switch off the current when not measuring
• D. Clean connections before measurement

Answer: (A)

Moving-pointer meters can stick when the mechanism binds slightly because of dust or friction. A gentle tap on the meter case gives the moving coil a tiny nudge, shaking loose the sticking point so the needle can move freely again. This helps prevent a stuck reading and keeps measurements accurate. Zero error checks relate to where the needle rests when there's no current, switching off the current is safety practice, and cleaning connections improves contact quality—not the mechanical sticking of the pointer.