3. How would you shield an electronic circuit from stray electric fields? Why do

Question

3. How would you shield an electronic circuit from stray electric fields? Why does this method work? This answer has not been graded yet Electric Potential and Electric Potential Energy Consider the diagrams below In each diagram, determne which point higher potental, point Aor port B Justify your answer. This answer has not been graded yet 5. A surface is an equipotential surface if the electric feld is perpendicular to the surface. True or taise? Justily your answer This answer has not been graded yet. 6. Two dfferent charges, q, and are placed at two deterent locations, one charge at each location. The babons have te same electric potensal V. Do the charges have the same electric potential energy? Explain your answer

Explanation / Answer

3. Keeping the electronic circuit in metal casing, it can be protected from stray electric fields.

This can be achieved from electric field inside a metal cavity is zero.

4. In radial electric force line case, the force lines are converging towards charged particle. It means that the charge at centre is Negative. Hence potential at B is high and A is low.

In uniform electric field electric field is from A to B. Then A is high potential and B is low.

5. True.

Any plane drawn perpendicular to field direction is equipotential surface. Any point on the surface is equidistant from charged particle, hence potential is constant.

Example Any plane drawn perpendicular to axis of an electric dipole is equipotential surface.

6. No.

Electricpotential energy U= Vq. Where V is electric potential and q is charge. Potential energy at two places are same, if both the charges and Potentials are equal. As charge are different and Potentials are same, potential energies are different.

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