@harsh OK HARSH LETS COUNTER UR ARGUMENT. SEE, LET US TAKE AN EXAMPLE OF A ONE LANE ROAD. NOW IN THE FRONT THERE IS A BYCYCLE, AFTER IT A BIKE AND THEN BEHIND IT A CAR. NOW THE CAR AND BIKE CAN TRAVEL FASTER THAN THE CYCLE BUT THEY ALL WILL HAVE TO TRAVEL WITH THE SPEDD OF THE CYCLE. SIMILAR IS THE CASE WID ELECTRONS. U SAID THT THE RESISTABCE OF R1 IS GREATER .OK THEN IT WILL HINDER THE FLOW OF ELECTRONS . NOW THE AMOUNT OF CHARGE FLOWING THROUGH R1 PER SECOND(THT IS CURRENT) IS THE SAME AMOUNT THT WILL HAVE TO FLOW THROUGH R2 COZ. ONLY THT AMOUNT IS ALLOWED TO PASS THROUGH R1. THTS WHY WE CAN SAY THT THE CURRENT IS SAME IN CASE OF SERIES COMBINATION. HOPE U GOT UR ANSWER NOW.