Student Login

Home›Chapters›Current Electricity PYQs›Wheatstone Bridge & Metre Bridge›Question 68

NEET 2019 · Wheatstone Bridge & Metre Bridge

Wheatstone Bridge & Metre Bridge question from NEET 2019

Q68NEET 2019Medium

Wheatstone Bridge & Metre Bridge

The metre bridge shown is in balance position with $\frac{P}{Q} = \frac{l_1}{l_2}$ . If we now interchange the positions of galvanometer and cell, will the bridge work? If yes, what will be balance condition?

Show answer and solution

Answer: (a)

A Wheatstone bridge stays balanced when the cell and galvanometer are interchanged (reciprocity).
The null point stays at the same position, so the condition is unchanged.
So the answer is (a) yes, $\dfrac{P}{Q} = \dfrac{l_1}{l_2}$ .

Report a mistake

More questions on Wheatstone Bridge & Metre Bridge

In a meter bridge experiment, the circuit diagram and the corresponding observation table…JEE Main 2019 (10 Apr, Shift 1)
In the experimental set up of metre bridge shown in the figure, the null point is…JEE Main 2019 (11 Jan, Shift 2)
In the network shown cell E has internal resistance r and the galvanometer shows zero…MHT CET 2019 (3 May, Shift 1)
In a meter bridge, the wire of length 1 m has a non-uniform cross-section such that, the…JEE Main 2019 (12 Jan, Shift 1)
On interchanging the resistances, the balance point of a meter bridge shifts to the left…JEE Main 2018
In a meter bridge, as shown in the figure, it is given that resistance Y = 12.5 Ω and…JEE Main 2018 (15 Apr, Shift 1)
Which of the following statements is false?JEE Main 2017
In a meter bridge experiment resistances are connected as shown in the figure. Initially…JEE Main 2017 (9 Apr, Shift 1)