In a p-n junction, the depletion layer of thickness 1 m has 0.05 ~V potential across it. The electric field in N C⁻¹ is

Step-by-step solution

The electric field E in a depletion layer is related to the potential difference V and the thickness d by the formula E = V d . Given values are V = 0.05 V and d = 1 m = 1 10⁻⁶ m . Substituting these values into the formula: E = 0.05 1 10⁻⁶ E = 0.05 10⁶ V/m E = 5 10⁻² 10⁶ V/m E = 5 10⁴ V/m (or N/C ). Answer: 5 10⁴