Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

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 (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



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


(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 402: 392


Grade:upto college level

1 Answers

Aditi Chauhan
askIITians Faculty 396 Points
8 years ago

(b)

Since,  the voltage is same for the two combinations, therefore

H inversely proportional to R.

Hence, the combination of 39 bulbs will glow more.

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free