TOPIC: ELECTRIC FIELD

II.KEY CONCEPTS Electric field exists whenever a charged particle is acted by an electrical force. Let us imagine an electric charge creating an electric field in the region of space surrounding it where it exerts a force on any other charge within that region. An electric field is the ratio of net electric force to the charge (q) placed at that point in the field. In symbols, E = F/q Where E is the electric field expressed in N/C F is the electric force expressed in Newtons (N]; and q is the positive test charge in coulomb (C] The direction of the electric field is the same as the direction of the electric force acting on the positive test charge. The electric field becomes stronger the closer the point is to the object and was represented using an imaginary line called electric field lines. III. A.MATERIALS Pen and paper Pencil and calculator B. REFERENCES: Padua, Alicia et. Al Practical and Explorational Physics Modular Approach , Vibal Publishing House Inc. pp. 257-260 Heuvelen, Alan Van, Physics- A General Introduction, Second Edition, pp. 486-487 Beiser, Arthur Modem Technical Physics, Sixth Edition, Addison-Wesley Publishing Inc. pp.479-487 www.physicsclassroom.com IV. PROCEDURE Draw an electric field lines of the following a. Single proton b. Single electron b. Two protons d. Two electrons e. a proton and electronV. ANALYSIS 1.What is the direction of electric field of a positive and a negative charge? 2. How does the density of electric field lines relate to the magnitude of charge? 3. How will you compare electric field to gravitational field