Question

Two electric bulbs one of 200V-40W and other of 200V-100W are connected in series to a 200 volt line, then

• A. The potential drop across two bulbs is same
• B. The potential drop across 40 W bulb is greater than the potential drop across 100 W bulb
• C. The potential drop across 100 W bulb is greater than the potential drop across 40 W bulb
• D. The potential drop across both the bulbs is 200 volt

Answer 1

The correct option is B

The potential drop across 40 W bulb is greater than the potential drop across 100 W bulb

$R_1=\frac{V^2}{40};R_2=\frac{V^2}{100}{V}_1=i{R}_1,V_2=i{R}_2{V}_1>V_2$