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The repulsive force in soil particle is due to ____________

(a) Particles are attracted to each other

(b) Particles are similarly charged

(c) Particles are oppositely charged

(d) None of the mentioned

I had been asked this question in an internship interview.

My question is based upon Interparticle Force in a Soil Mass in division Soil Structure and Clay Minerology of Geotechnical Engineering I

1 Answer

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Right choice is (b) Particles are similarly charged

To explain: Since the particles are similarly charged (negative) they repel each other causing repulsive force.

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