Paper 1 H - SAMPLE SET 1 Q17
17) A student rubs a balloon against a scarf.
(a)* Describe how the balloon has become charged.
Suggest a way to show that the balloon is charged. What would you expect to see and why? [6]
(b) The rate of flow of electrical charge in a circuit is a current.
A current of 40 mA transfers a charge of 3.6 C.
Calculate how long this takes.
Show your working. [3]
Suggest a way to show that the balloon is charged. What would you expect to see and why? [6]
(b) The rate of flow of electrical charge in a circuit is a current.
A current of 40 mA transfers a charge of 3.6 C.
Calculate how long this takes.
Show your working. [3]
answer: ........................... seconds
(Total for Question 17 = 9 marks)