In balanced meter bridge, the resistance of bridge wire is 
. Unknown resistance 
is connected in left gap and 
in right gap, null point divides the wire in the ratio 
. Find the current drawn from the battery of 
having negligible resistance.
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
From the balancing condition of Wheatstone bridge, 
(given)
Resistance of bridge wire, 
Resistance of 
Equivalent resistance of the circuit,
Voltage of battery, 
Current drawn, 
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
The resistances in left and right gap of a meter bridge are and respectively. When the resistance…
A potentiometer wire of length is connected in series with a battery. The emf of a cell balances a…
In potentiometer experiment, null point is obtained at a particular point for a cell on potentiomet…
Two unknown resistances are connected in two gaps of a meter-bridge. The null point is obtained at …
The resistivity of potentiometer wire is metre and its area of cross-section is . If 0.2 ampere c…
In the following network, the current flowing through resistance is