A metal sphere is suspended vertically by an insulating thread. The sphere is charged. The charge causes an electric field around the sphere. Complete the definition of an electric field.

An electric field is a region where experiences .

6(b)(i)Charge Static ElectricityEasy1 mark

A negatively charged metal rod is brought close to the sphere. Figure 6.1 shows the charged rod and charged sphere. State and explain whether the charge on the metal sphere is positive or negative.

a negatively charged metal rod held by an insulating handle close to a charged metal sphere that hangs from an insulating thread, the thread pulled away from the vertical dashed line towards the rod

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6(b)(ii)Charge Static ElectricityMedium3 marks

The metal sphere touches the rod. State what happens to the sphere. Explain this in terms of the movement of particles.

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