1. The problem statement, all variables and given/known data Suppose a tunneling current in an electronic device goes through a potential-energy barrier. The tunneling current is small because the width of the barrier is large and the barrier is high. To increase the current most effectively, what should you do? a. Reduce the width of the barrier. b. Reduce the height of the barrier. c. Either choice (1) or choice (2) is equally effective. d. Neither choice (1) nor choice (2) increases the current 2. Relevant equations 3. The attempt at a solution should I use this equation? T ≈ e^(-2CL) , L is he width of the barrier. c^2 = 2m(U-E)/(h/2pi) , U is the height of the barrier ; E is the energy of electron ;m is the mass of electro; h is plank constant I am not understand why the answer is a.