Question

The figure shows an uncharged conducting cubic shell and a positive point charge Q outside the shell. There are two lettered points W and X inside the shell where the electric field can be measured. The electric field at points W and X are EW and EX, respectively. Point W is at the center of the cubic shell. Outside the shell are points Y and Z where the charge Q can be placed. All four points are along the same line. Which of the following statements is correct?
If the point charge is placed at point Y , EW>EX .


Answer A: If the point charge is placed at point Y , E sub W is greater than E sub X .


Answer B: If the point charge is placed at point Y , E sub W is less than E sub X .


Answer C: If the point charge is placed at point Z , E sub W is greater than E sub X .


Answer D: If the point charge is placed at point Z , E sub W is less than E sub X .


Answer E: If the point charge is placed at point Z , E sub W is equal to E sub X .

Answer 1

If the point charge is placed at point $E_W$ is equal to $E_X$.

Electric field inside a conducting cubic shell

The electric field inside a conducting cubic shell is zero. When a point charge is placed outside the shell, the electric field outside the shell is greater than the electric field inside the shell which is zero.

We can deduce the following;

• Electric field inside the shell is zero, thus $E_W = E_X =0$
• Electric field outside the shell is greater than electric field inside the shell

Thus, the only correct statement is, If the point charge is placed at point $E_W$ is equal to $E_X$.

Learn more about electric field inside a shell here: brainly.com/question/539905