Electric meta segm Date: 1/17/2018 1:00:00 AM -- Due Date: 1/31/2018 1:00:00 PM

Question

Electric meta segm Date: 1/17/2018 1:00:00 AM -- Due Date: 1/31/2018 1:00:00 PM End Date: 1/31/2018 1:00:00 PM (8%) Problem l: Suppose a point charge creates a 9500 N/C electric field at a distance of 0.75 m. A 50% Part (a) What is the magnitude of the point charge in coulombs? 7 8 9 45 sin() cos() tan) cotan() asin( acos() atan() acotan() sinh) cosh() tanh) cotanh) • Degrees o, Radians | VO BACKSPACE Submit Hint Feedback I give up! Hints: 596 deduction per hint. Hints remaining: 1 Feedback: 0% deduction per feedback. a 50% Part (b) What is the strength of the field, in newtons per coulomb, at a distance of 10 m?

Explanation / Answer

Electric field is given by:

E = kQ/R^2

Q = E*R^2/k

Given values are:

k = 9*10^9

E = 9500 N/C

R = 0.75 m

So,

Q = 9500*0.75^2/(9*10^9)

Q = 5.94*10^-7 C

B.

At a distance of 10 m, electric field will be

E = k*Q/r1^2

E = 9*10^9*5.94*10^-7/10^2

E = 53.46 N/C

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