Question 1:
Which of the following is an electrical property of a material?
Explanation: The correct answer is B) Conductivity. Conductivity is an electrical property that describes a material's ability to conduct an electric current. It depends on the presence of free-moving charges or electrons within the material.
Question 2:
Which electrical property describes a material's ability to resist the flow of electric current?
Explanation: The correct answer is B) Resistivity. Resistivity is an electrical property that describes a material's ability to resist the flow of electric current. It is the opposite of conductivity and depends on the material's atomic and molecular structure.
Question 3:
Which electrical property describes a material's ability to store and release electrical energy?
Explanation: The correct answer is B) Capacitance. Capacitance is an electrical property that describes a material's ability to store and release electrical energy in an electric field. It is related to the material's ability to store charge and is commonly measured in farads.
Question 4:
Which electrical property describes a material's ability to attract or repel other magnetic materials?
Explanation: The correct answer is C) Magnetism. Magnetism is an electrical property that describes a material's ability to attract or repel other magnetic materials. It arises from the alignment of magnetic moments within the material or the presence of permanent or induced magnetic fields.
Question 5:
Which electrical property describes a material's ability to generate an electric potential difference when subjected to a mechanical force?
Explanation: The correct answer is B) Piezoelectricity. Piezoelectricity is an electrical property that describes a material's ability to generate an electric potential difference when subjected to a mechanical force or pressure. It is commonly observed in certain crystals and ceramics and finds applications in sensors and actuators.
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