In the experimental set up of metre bridge shown in the figure, the null point is obtained at a distance of 40 cm from A. If a 10
resistor is connected in series with R1, the null point shifts by 10 cm. The resistance that should be connected in parallel with (R1 + 10)
such that the null point shifts back to its initial position is
a.
40 
b.
60 
c.
20 
d.
30 
resistor is connected in series with R1, the null point shifts by 10 cm. The resistance that should be connected in parallel with (R1 + 10) such that the null point shifts back to its initial position isa.
40
b.
60
c.
20
d.
30
Question ID - 50605 | SaraNextGen Top Answer In the experimental set up of metre bridge shown in the figure, the null point is obtained at a distance of 40 cm from A. If a 10 resistor is connected in series with R1, the null point shifts by 10 cm. The resistance that should be connected in parallel with (R1 + 10) such that the null point shifts back to its initial position is
a.
40
b.
60
c.
20
d.
30
In the experimental set up of metre bridge shown in the figure, the null point is obtained at a distance of 40 cm from A. If a 10 resistor is connected in series with R1, the null point shifts by 10 cm. The resistance that should be connected in parallel with (R1 + 10) such that the null point shifts back to its initial position is
|
a. |
40 |
b. |
60 |
|
c. |
20 |
d. |
30 |
= 
…..(i)
= 1 ⇒ 
+ 10 = 
….. (ii)
+ 10 = 
10 = 
⇒ 
= 30
& 
= 20
= 
R = 60