GATE Electronics and Communications (EC) 2014 Shift 1 Solved Paper

A depletion type N-channel MOSFET is biased in its linear region for use as a voltage controlled resistor. Assume threshold voltage V_TH = - 0.5 V, V_GS = 2.0 V, V_DS = 5 V, W/L = 100, C_OX = 10^-8 F/cm² and μ_n = 800 cm²/V-s. The value of the resistance of the voltage controlled resistor (in Ω) is _________.