TY JOUR TI EXCEL INFORMATION MEDIA USING AT LABORATORY-PRACTICAL CLASSES ON PHYSICS (ON EXAMPLE OF THE SECTION «ELECTRICITY» STUDYING) KW electrostatics KW electrostatic field KW Gauss's theorem for electric fields KW electric current KW electric current characteristics KW virtual laboratory installation JO NATURAL AND MAN-MADE RISKS (PHYSICO-MATHEMATICAL AND APPLIED ASPECTS) AU Danilov, I.L. AU Egorova, N.I. PY 2018 IS 2018 PB Saint-Petersburg University of State Fire Service of Emercom of Russia