Some times balance point may not be obtained on the potentiometer wire. Why?
Text Solution
Verified by Experts
It is possible only if the fall of potential across the potentiometer wire is less than the potential difference to be balanced by the potentiometer wire.
Topper's Solved these Questions
CURRENT ELECTRICITY
PRADEEP|Exercise Conceptual Problems|3 Videos
CURRENT ELECTRICITY
PRADEEP|Exercise Very short Q/A|7 Videos
COMMUNICATION SYSTEMS
PRADEEP|Exercise MODEL TEST PAPER-2|9 Videos
DUAL NATURE OF RADIATION AND MATTER
PRADEEP|Exercise Exercise|191 Videos
Similar Questions
Explore conceptually related problems
In an experiment to find the internal resistance of a cell by a potentiometer, a balance was obtained for 50 cm length of the potentiometer wire, with a cell of e.m.f. 2V. When the cell was shunted by a resistance of 2 Omega , the balancing length of the potentiometer wire was 40 cm. What was the internal resistance of the cell ?
With a certain cell the balance point is obtained at 70 cm from the zero and of the potentiometer wire. With another cell whose emf differs from the 60 cm mark .Calculate the emf of the two cells
In a potentiometer, balance point is obtained, when
A potentiometer wire is 10 m long and a P.D. of 6 V is maintained between its ends. The e.m.f. of the cell which balances against a length of 200 cm of the potentiometer wire is
A balance point is obtained in the potentiometer wire .If the fall of potential along the potentiometer wire Due to……is greater than the …..in the balanced
In a potentiometer of 5 wires, the balance point is obtained on the 3rd wire. To shift the balance point to the 4th wire,
For a cell of e.m.f. 2 V , a balance is obtained for 50 cm of the potentiometer wire. If the cell is shunted by a 2Omega resistor and the balance is obtained across 40 cm of the wire, then the internal resistance of the cell is
The potentiometer wire of length 200 cm has a resistance of 20 Omega . It is connected in series with a resistance 10 Omega and an accumulator of emf 6 V having negligible internal resistance. A source of 2.4 V is balanced against length 1 of the potentiometer wire. Find the length l of the potentiometer wire. Find the length l
PRADEEP-CURRENT ELECTRICITY-Problems for Practice (B)
