(a) Find out how much equivalent resistance of the circuit is, (b) and how much total current will flow in the main circuit. (c) what would be current and voltage in each branch in the given figure. In this figure, Vt = 210 V, R1 = 20 Ohm, R6 = 15 Ohm, R7 = 25 ohm, R2 = R3 = 30 Ohm, R4 = 10 Ohm, R5 = 20 ohm.