Tutoring with Top Teachers: Junior High Physics (Grade 8): Grade 8

Author: Li Litian
Publisher:
Publish Date: 2004-01-01
Features: This book is part of the "Master's Companion Series" and is the third-grade physics textbook for junior high school. Based on the current curriculum and teaching syllabus, it is divided into four sections: pre-class preview, in-class exercises, after-class exercises, and selected solutions for after-class problems. The book is highly targeted, with a strong knowledge base, systematic structure, and practicality, making it an excellent study aid for students and a valuable reference for teachers.
6. Which of the following statements is correct?
A. When using a voltage tester, the tip should touch the wire, but the metal part of the tail should not be touched to avoid electric shock.
B. When installing lighting circuits, the fuse box and light switches should both be connected to the neutral wire.
C. The screw base of a socket should only be connected to the neutral wire.
D. The live wire in a lighting circuit is the positive pole of the power supply.