O0/8 points | Previous Answers OSColPhys2016 18.4.WA.032 (a) What magnitude poin

Question

O0/8 points | Previous Answers OSColPhys2016 18.4.WA.032 (a) What magnitude point charge creates a 50,000 N/C electric field at a distance of 0.212 m? Using the equation for the electric field due to a point charge, can you solve for the charge? C (b) How large is the field at 23.4 m? Using the equation for the electric field due to a point charge, and knowing the charge from part (a) Additional Materials Reading Submit Answer Practice Another Version O0/4 points | Previous Answers OSColPhys2016 18.7.P.041 What is the force on the charge in newtons located at x +8.00 cm in part (a) of the figure below giver right.) 0 5 10 x (cm) +q -2a

Explanation / Answer

here,

a)

electric feild , E = 50000 N/C

distance from the charge , r1 = 0.212 m

let the magnitude of charge be q

E = K * q/r1^2

50000 = 9 * 10^9 * q /0.212^2

solving for q

q = 2.5 * 10^-7 C

the magnitude of charge is 2.5 * 10^-7 C

b)

r2 = 23.4 m

the electric feild , E2 = K * q/r2^2

E2 = 9 * 10^9 * 2.5 * 10^-7 /23.4^2 N/C

E2 = 4.1 N/C

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