Consider switching delays for 1pF in a 10−kΩ resistive-load inverter circuit, where
μₙ Cₐₓ = 25 μA/V²
W/L = 10
Vₜ₀ = 1.0 V

Find τ PHL (50\% high-to-low transition delay) by using the averagecurrent method. Assume that the input signal is an ideal rectangular pulse switching between 0 and 5 V with zero rise/fall times. You will have to calculate Vₒₗ to solve this problem.