A) Explain how a magnetic needle and a bulb help in testing the conduction of electricity by different materials. Which of the two is more effective in testing the conduction of
electricity by liquids? Give a reason for your answer.

Imma say go with a (:

Aself-report inventory  is a type of  psychological test  used in personality assessment. this type of test is often presented in a paper-and-pencil format or may even be administered on a computer. a typical self-report inventory presents a number of questions or statements that may or may not describe certain qualities or characteristics of the test subject.