In the circuit shown in fig. if both the bulbs `(B_1) and (B_2)` are identical

In the circuit shown in figure, if both the bulbs B_(1) and B_(2) are identical:

In the circuit shown in the figure, if both the bulbs B_(1) and B_(2) are identical

In the circuit shown in figure-5.318, if both the bulbs B_(1) and B_(2) are identical:

In the circuit shown in Fig. If both the lamps L_(1) and L_(2) are identical.

In the two circuits shown, all the light bulbs and batteries are identical. If A,B and C repectively denotes the brightness of light bulbs A,B & C then