Current Electricity Charging Discharging Of Capacitors Question 729
Question: Forty electric bulbs are connected in series across a 220 V supply. After one bulb is fused the remaining 39 are connected again in series across the same supply. The illumination will be
Options:
A) more with 40 bulbs than with 39
B) more with 39 bulbs than with 40
C) equal in both the cases
D) in the ratio $ 40^{2}:39^{2} $
Show Answer
Answer:
Correct Answer: B
Solution:
[b] Since, the voltage is same for the two combinations,
Therefore $ H\propto \frac{1}{R} $ . Hence, the combination of 39 bulbs will glow more.
BETA
