Photo AI
Figure 6 shows a Van de Graaff generator that is used to investigate static electricity - AQA - GCSE Physics - Question 6 - 2018 - Paper 1
Question 6
Figure 6 shows a Van de Graaff generator that is used to investigate static electricity. Before it is switched on, the metal dome has no net charge. After it is swit... show full transcript
Worked Solution & Example Answer:Figure 6 shows a Van de Graaff generator that is used to investigate static electricity - AQA - GCSE Physics - Question 6 - 2018 - Paper 1
Step 1
06.1 Explain how an uncharged object may become positively charged.
Answer
An uncharged object can become positively charged through a process called electron transfer. When an uncharged object comes in contact with a positively charged object, electrons from the uncharged object may be attracted towards the positively charged object. As a result, the uncharged object loses some of its negatively charged electrons, leading to an excess of positive charge. Thus, the uncharged object acquires a positive charge.
Step 2
06.2 Draw the electric field pattern around the metal dome when it is isolated from its surroundings.
Answer
To represent the electric field around the positively charged metal dome, draw at least four lines radiating outward from the surface of the dome. These lines should be perpendicular to the surface, indicating the direction of the electric field. Ensure that at least one arrow points away from the dome, depicting the field direction reaching outward.
Step 3
06.3 In which position would the object experience the greatest force?
Answer
The positively charged object would experience the greatest force at position Q. This position is closest to the positively charged metal dome, resulting in a stronger electric field and, consequently, a greater force acting on the object.