Channel current is reduced on application of a more positive voltage to the gate of a depletion mode n-channel MOSFET.

The transit time of the current carriers through the channel of an FET decides its ____________characteristics.

The threshold voltage of an n-channel MOSFET can be increased by

The following system of equations
$${{x_1} + {x_2} + {x_3} = 3}$$
$${{x_1} - {x_3} = 0}$$
$${{x_1} - {x_2} + {x_3} = 1}$$ has