The circuit below is used to control a DC motor using a microcontroller for which logic one is 3V and logic zero is 0V. The motor consumes a maximum of 0.42A when turned on. For both Q1 and Q2 8=100, VBEVEI0.7V, and VCE(satYEC (sat).2V. Also RC-13.2ks and VDG9.9V. a. Calculate the maximum allowed value of RB1 in 2. b. Calculate the maximum allowed value of RB2in 2. Note: In this problem, you may only submit numerical answers accurate to 0.02% or better. (i.e. If 4 is the correct answer, 3.9999 will be marked as correct, but 2+2 will be marked as incorrect. ) НС Rg1 Rc RB2 VD DC