In the figure, if A & B are identical bulbs, which bulb glows brighter
In the figure, if A & B are identical bulbs, which bulb glows brighter
A
B
Both with equal brightness
Both do not glow
Solution
For bulb $\mathrm{A}, \mathrm{I}_1=\frac{\mathrm{V}_{\mathrm{o}}}{\mathrm{X}_{\mathrm{L}}}=\frac{\mathrm{V}_{\mathrm{o}}}{\mathrm{w}_{\mathrm{L}}}=\frac{\mathrm{V}_{\mathrm{o}}}{\mathrm{w} \times 100 \times 10^{-3}}=\frac{10 \mathrm{v}_0}{\mathrm{w}}$
For bulb $B, I_2=\frac{V_0}{X_c}=\frac{V_o}{1 / w C}=V_o w C$
$=V_o w \times 10 \times 10^{-12}$
$\therefore \quad \mathrm{I}_1\gt\mathrm{I}_2 \Rightarrow$ Bulb A will glow brighter.
