Banner 0
Banner 1
Banner 2
Banner 3
Banner 4
Banner 5
Banner 6

Q.

Two unknown resistances X and  Y are connected in the left and right gaps of a meter bridge and the balancing point is obtained at 60 cm from the left. When a 20Ω resistance is connected in parallel to X  the balance point is 50 cm. Calculate X and Y (in ohm)

see full answer

Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!

Real Strategies. Real People. Real Success Stories - Just 1 call away
An Intiative by Sri Chaitanya

a

10,203

b

103,20

c

10, 20

d

20, 30

answer is A.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

Resistance R = X Resistance  S = Y Balancing length l=60cm Balancing length l=50cm Balancing condition for meter bridge RS=l100lXY=604032 ...(1) 

When a 20 Ω resistance is connected in parallel to X 
XY=l100l20X20+XY=505012020+X32=130=20+XX=10ΩY=203Ω

Watch 3-min video & get full concept clarity

Best Courses for You

JEE

JEE

NEET

NEET

Foundation JEE

Foundation JEE

Foundation NEET

Foundation NEET

CBSE

CBSE

score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

whats app icon