question_answer

A student found that when a resistance of \[\mathbf{3}\,\mathbf{\Omega }\] was joined with 3 V battery as per figure shown below, the current flowing through it was 1 A. He then joined another resistance of 6\[\mathbf{6}\,\mathbf{\Omega }\] in parallel with \[\mathbf{3}\,\mathbf{\Omega }\] resistance. The reading in the ammeter will now be:

(a) 9 A                                      (b) 1.5 A

(c) 1 A                                       (d) 6 A

Answer:

(b) 1.5 A