e Edit View History Bookmarks People Window Help Mastering Physics: Chapter 20 P

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e Edit View History Bookmarks People Window Help Mastering Physics: Chapter 20 Problems https://session.masteringphysics.com/myct/itemView?offset next&assignmentProblemID; 73091890 BSC GNET 102 TECH PHYSICS Il Spring 2017 Signed in at Chapter 20 Problems Problem 20.11 Problem 20.11 Part A IPA spark plug in a car has electrodes separated What potential difference must be applied to the spark plug to initiate a spark? by a gap of 6.0x10 2 in. To create a spark and Express your answer using two significant figures. ignite the air-fuel mixture in the engine, an electric field of 3.5x106 V/mis required in the gap. AV Submit My Answers Give Up incorrect; Try Again; 4 attempts remaining Part B If the separation between electrodes is increased, does the required potential differ

Explanation / Answer

Here,

let the potential applied is V

seperation , d = 6 *10^-2 m

Electric field , E = 3.5 *10^8 V/m

Now, as E = V/d

V = 3.5 *10^8 * 6 *10^-2

V = 21000000 V = 2.1 *10^7 V

the potential needed is 2.1 *10^7 V

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