Physics · Electrical Measurements
Stray electric fields can cause serious measurement errors in electrostatic instruments. These errors are minimized by:
- 1Using highly laminated magnetic cores.
- 2Increasing the supply frequency.
- 3Using electrostatic shielding via guard rings or enclosures.✓
- 4Using a thick ferromagnetic casing.
Correct answer
Using electrostatic shielding via guard rings or enclosures.
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