$B_1, B_2$ and $B_3$ are three identical bulbs connected as shown in Figure. When all the three bulbs glow, a current of $3\,A$ is recorded by the ammeter $A$.
$(i)$ What happens to the glow of the other two bulbs when the bulb $B_1$ gets fused?
$(ii)$ What happens to the reading of $A_1, A_2, A_3$ and $A$ when the bulb $B_2$ gets fused?
$(iii)$ How much power is dissipated in the circuit when all the three bulbs glow together?
$B_1, B_2$ and $B_3$ are three identical bulbs connected as shown in Figure. When all the three bulbs glow, a current of $3\,A$ is recorded by the ammeter $A$.
$(i)$ What happens to the glow of the other two bulbs when the bulb $B_1$ gets fused?
$(ii)$ What happens to the reading of $A_1, A_2, A_3$ and $A$ when the bulb $B_2$ gets fused?
$(iii)$ How much power is dissipated in the circuit when all the three bulbs glow together?
$(i)$ The glow of the bulbs $B_2$ and $B_3$ will remain the same.
$(ii)$ $A_1$ shows $1$ ampere, $A_2$ shows zero, $A_3$ shows $1$ ampere and $A$ shows $2$ ampere
$(iii)$ $P = V I = 4.5 3 = 13.5\, W$
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