Engine 2014: Electricity

1. A The feeler will vibrate in synchronism with the 60 Hz AC power source and produce a growling noise when the feeler is moved over a slot containing a shorted coil.
2. B The feeler will vibrate in synchronism with the 60 Hz AC power source and produce a growling noise when the feeler is moved over a slot which does NOT contain a shorted coil.
3. C The feeler will remain motionless with NO vibration or noise when the feeler is moved over a slot containing a shorted coil.
4. D The feeler will vibrate in synchronism with the 60 Hz AC power source and produce a growling noise when the feeler is moved over a slot containing an open coil.

Tip: press A-D to answer