Fin the current through person and identry the likely emect on her she touches 1

Question

Fin the current through person and identry the likely emect on her she touches 120 V AC sourc0 in the following cronances (Note that currents above 10 mA leed to involuntarily muscle (a) Find the current (in mA) if she is standing àreeer mat and offers a total resistance of 350 k 2. Identify the lkely effect She will experience muscle contraction for the duration of the shock. O She wilfeel nothing Cb) rid the current (in mA) She is anding barefoot on wet grass and has a reseance of onty 4500 a Idenify the lkely efect. She wil experience muscle contraction for the duration of the shock She will feel nothing Additional Materials Home My Assignments Exension Reest

Explanation / Answer

(A) I = V / R

I = 120 / (350 x 10^3) = 0.34 x 10^-3 A  

I = 0.34 mA  

- She will feel nothing.

(b) I = 120 / 4500 = 0.0267 A Or 26.7 mA  

she will experience muscle contraction for the duration.

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