A fuse `F_(1)` is connected across a source of variable voltage and the voltage is increased gradually. The fuse blows out just when the reading of the voltmeter and ammeter reaches `1.0 V and 1.0 A` respectively (see figure (i)). The experiment is repeated with another fuse `F_(2)` and the reading of the voltmeter and ammeter when it blows out is `2.4 V and 1.2 A` respectively.
(a) The two fuses are connected in parallel as shown in figure (ii). Voltage is increased gradually. find the reading of the ammeter when any one of the fuses blows out.
(b) The two fuses are connected in series as shown in figure (iii). find the reading of the voltmeter at the point one of the fuses blows out.

Answer

(a) 1.5 A
(b) 3.0 V