Physics · Electrostatics
An electroscope is a laboratory instrument primarily used to:
- 1Test the electrical conductivity of a given material.
- 2Measure the precise magnitude of current in a circuit.
- 3Measure the potential difference across an appliance.
- 4Detect the presence and nature of electric charge on a body.✓
Correct answer
Detect the presence and nature of electric charge on a body.
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