V11_Dielectrophoresis - Introduction Quiz
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Questions and Answers

Dielectrophoresis force depends on the presence of electric field gradients

True

In DEP, the force is influenced by the polarity of the electric field

False

AC fields are preferred in DEP to enhance electrophoretic forces

False

High field gradients are essential in DEP for large particles to overcome Brownian motion

<p>False</p> Signup and view all the answers

To achieve high field gradients in DEP, one can use electrodes with large sizes and spacing

<p>False</p> Signup and view all the answers

High electric field strengths are needed in DEP applications to induce potential heating effects

<p>False</p> Signup and view all the answers

Imaginary unit 𝑖 is used in the context of complex permittivity.

<p>True</p> Signup and view all the answers

Electric field lines are generated when an electric field is applied across two electrodes.

<p>True</p> Signup and view all the answers

Dielectrophoresis involves the polarization of a polarizable particle in a uniform electric field.

<p>False</p> Signup and view all the answers

The permittivity in vacuum is represented by ε0 = $8.854187 * 10^{-12}$ F/m.

<p>True</p> Signup and view all the answers

Mirco and Nanosystems is a publication that covers topics related to Microfluidic Systems and Bio-MEMS.

<p>True</p> Signup and view all the answers

Complex permittivity describes the response of materials to an applied electric field considering both real and imaginary components.

<p>True</p> Signup and view all the answers

The induced dipoles M lead the electric field E by an angle in electrorotation.

<p>False</p> Signup and view all the answers

In electrorotation, the interaction between the electric field and the trailing dipoles induces a torque H in the particle.

<p>False</p> Signup and view all the answers

Phase shift in electrorotation is represented by the real part of fCM.

<p>False</p> Signup and view all the answers

In electrorotation, applying a fast rotating electric field causes the particles to levitate.

<p>False</p> Signup and view all the answers

N-DEP is required for electrorotation to occur in microfluidic systems.

<p>False</p> Signup and view all the answers

Trailing relaxation of dipoles plays a significant role in inducing rotation in electrorotation.

<p>True</p> Signup and view all the answers

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