The grey area is a conducting sheet with two round electrodes, each connected by

Question

The grey area is a conducting sheet with two round electrodes, each connected by a terminal. A detailed Figure of the grid area is shown in Figure 2. Figure 2 - Conducting sheet. The first two parts deal with the electric field and potential along the straight line joining the two electrodes shown in Figure 2. A potential difference of 3.5 V is applied between the electrodes. What is the magnitude and direction of the electric field along the line y = 4 cm? Note that the electric field is given by E=xV .

What is the potential at the (5,4) cm point? The grid points are 1 cm apart. Note: The potential difference decreases uniformly between the two electrodes.

Figure 1 - Experimental setup. The grey area is a conducting sheet with two round electrodes, each connected by a terminal. A detailed Figure of the grid area is shown in Figure 2 4 4 6 8 0 12

Explanation / Answer

The electric field is

E = V /d = 3.5 / 0.05 = 70V/m

b)

Potenital is

V= Ed

V = 70 (0.05^2 + 0.04^2)^0.5

V= 4.482 volts

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