Unit 3: Fields Activity 3: Electric Fields - Proton / Drop of Oil Assignment Instructions: Respond to the question below in GRASS (GRASP) method. Use google docs to type in your answer in blue: i) click insert tab to insert equations and/or drawings or Answer the question by hand, take a picture and insert image below When finished editing your google doc, click on file and download as a pdf, then submit to drop box 1. Calculate the electric field 4.0 cm from a proton. Given: Type or insert image Required: Type or insert image Analysis: Type or insert image Solution: Type or insert image Statement / Paraphrase: Type or insert image 2. A drop of oil is floating between two parallel plates with a separation of 4.0 mm and an applied voltage of 125 V. If the mass of the oil drop is 3.5 x 10-10 kg, determine the charge on the drop if the top plate is negative. (Hint: The electric force and the force of gravity balance.) Given: Separation of the plates (d) = 4.0 mm = 4.0 10^(-3) m Applied voltage (V) = 125 V Mass of the oil drop (m) = 3.5 10^(-10) kg Required: Type or insert image Analysis: Type or insert image Solution: Type or insert image Statement / Paraphrase: Type or insert image