477423
Descripción
Test por alex.examtime9373, actualizado hace más de 1 año
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Creado por alex.examtime9373
hace más de 10 años
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Pregunta 1
Pregunta
What is the unit of electric charge
Respuesta
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Newton
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Coulomb
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Newton/ Coulomb
-
Volt
-
Watt
Pregunta 2
Pregunta
Rubbing a Perspex rod with a cotton cloth causes the rod to become positively charged.
Respuesta
- True
- False
Pregunta 3
Pregunta
An insulator is a substance through which electric charge can flow.
Respuesta
- True
- False
Pregunta 4
Pregunta
Which of the following materials are conductors?
Respuesta
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Glass
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Metal
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Plastic
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Electrolytes
Pregunta 5
Pregunta
Where does static charge reside on a conductor?
Respuesta
-
The inside of a conductor
-
Where the conductor is most pointed
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It depends on whether the conductor is negatively or positively charged
Pregunta 6
Pregunta
What instrument is used to demonstrate point discharge?
Respuesta
-
Van de Graaff generator
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Gold leaf electroscope
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Electricity running through a container of oil and semolina
Pregunta 7
Pregunta
According to Coulomb's Law, the electrostatic force between two charges increases when the distance between them is increased.
Respuesta
- True
- False
Pregunta 8
Pregunta
What is the formula for electric field strength?
Respuesta
-
Electrostatic force x charge
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Electrostatic force x distance
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Electrostatic force/ distance
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Electrostatic force/ charge
Pregunta 9
Pregunta
Calculate the electric field strength at a point where a 6 C charge experiences a 3 N force.
Respuesta
-
18 N C
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0.5 N/C
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2 N/C
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2 C/N
Pregunta 10
Pregunta
For an object to be charged by induction, the conductor must be touched with the charged object.
Respuesta
- True
- False
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