TY - BOOK ED - Nuffield Foundation TI - Physics teachers' guide unit 3 : field and potential SN - 14082703x U1 - 530 PY - 1971/// CY - England PB - Nuffield Advanced Science KW - Physics N1 - includes appendices and index ; 1. The uniform electric field 2. Gravitational field and potential 3. The electrical inverse square law 4. Ionic crystals ER -