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An uncharged metal slab has equilateral triangular faces with 12-cm sides. It is placed in an...

An uncharged metal slab has equilateral triangular faces with 12-cm sides. It is placed in an external electric field that is perpendicular to its faces. The total charge induced on one of the faces is 1.2 C. What is the magnitude of the electric field?

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Answer #1

PLEASE READ THE NOTE BELOW

ARE YOU SURE THE CHARGE IS 1.2 C ?????

ARE YOU SURE THE CHARGE IS 1.2 C ?????

ARE YOU SURE THE CHARGE IS 1.2 C ?????

_______________________________________________

Area of equilateral triangle

so,

Put a = 12 cm = 0.12 m

A = 6.235e-3 m2

so,

charge density, = q / A = 1.2 / 6.235e-3

= 192.45 C/m2

so,

E = / o

E = 2.174e13 N/C

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