Given that R1=10ohm, R2=40ohm, R3=30ohm, R4=20ohm and RA is the parallel combination of R1 and R2 whereas RB is the parallel combination of R3 and R4. Combination RA is connected to the positive terminal of 12V battery while combination RB is connected to the negative terminal. Ammeter A is connected between the resisters RA and RB.
(i) Find RA and RB. Also calculate total resistance in the circuit.
(ii) Draw the circuit diagram showing above combinations connected to battery and ammeter.
