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When the position of cell and galvanometer in a Wheatstone bridge is inter-changed, its balanced condition
  • a)
    Changes and depends on galvanometer position only
  • b)
    Changes
  • c)
    Changes and it depends on cell position only
  • d)
    Remains unchanged
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
When the position of cell and galvanometer in a Wheatstone bridge is i...
For balanced Wheatstone bridge which is shown in figure a, P/Q​=S/R​
If we interchange the cell and galvanometer then circuit becomes as shown in figure b.
and balanced condition, P/S​=Q​/R⇒P/Q​=S/R​
Thus, balanced point remains unchanged.
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Most Upvoted Answer
When the position of cell and galvanometer in a Wheatstone bridge is i...
balanced condition is the condition in which the current does not flow through the galvanometer.. now cell and galvanometer are replaced.. since the symmetry is undisturbed in case of resistance, their will still be no deflection as u know the galvanometer is still in parallel u can say to all of them..
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Community Answer
When the position of cell and galvanometer in a Wheatstone bridge is i...
In balanced condition there is no flow of current through galvanometer so we can interchange galvanometer by battery & even if we deteched galvanometer from circuit there is circuit remains same bcz galvanometer plays no role in balanced condition
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Read the following text and answer the following questions on the basis of the same: Galvanometer can sense/measure current. Improved mirror galvanometer was developed by William Thomson, later to become Lord Kelvin, in 1858. Thomson intended the instrument to read weak signal currents on very long submarine telegraph cables. The fundamental problems of transmitting/ receiving a signal through a lengthy submarine cable was that the electrical current tended to be very low (as little as 1/100,000th of a standard light bul b). So, it was very difficult to detect it. To solve the problem it was thought that larger amount of electric current would be sent through the line. But Thomson had a different approach. He thought the best response was to devise a device that could read faint signals. The galvanometer, first invented in 1802, was a means of detecting electric current. It consisted of a needle that was deflected by the magnetic field created by the electric current. But the galvanometers of the day couldn't detect the weak signals that came through a long underwater cable. But the improved version of galvanometer was highly sensitive to detect the lowest current. The mirror galvanometer consists of a long fine coil of silk-covered copper wire. In the heart of that coil, within a little air-chamber, a small round mirror is hung by a single fibre of floss silk, with four tiny magnets cemented to its back. A beam of light is thrown from a lamp upon the mirror, and reflected by it upon a white screen or scale a few feet distant, where it forms a bright spot of light; when there is no current on the instrument, the spot of light remains stationary at the zero position on the screen; but the instant a current traverses the long wire of the coil, the suspended magnets twist themselves horizontally out of their former position, the mirror is inclined with them, and the beam of light is deflected along the screen to one side or the other, according to the nature of the current. If a positive electric current gives a deflection to the right of zero, a negative current will give a deflection to the left of zero, and vice versa. The air in the little chamber surrounding the mirror is compressed, so as to act like a cushion, and deaden the movements of the mirror; the mirror is thus prevented from idly swinging about at each deflections.Mirror galvanometer was primarily used to

When the position of cell and galvanometer in a Wheatstone bridge is inter-changed, its balanced conditiona)Changes and depends on galvanometer position onlyb)Changesc)Changes and it depends on cell position onlyd)Remains unchangedCorrect answer is option 'D'. Can you explain this answer?
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When the position of cell and galvanometer in a Wheatstone bridge is inter-changed, its balanced conditiona)Changes and depends on galvanometer position onlyb)Changesc)Changes and it depends on cell position onlyd)Remains unchangedCorrect answer is option 'D'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about When the position of cell and galvanometer in a Wheatstone bridge is inter-changed, its balanced conditiona)Changes and depends on galvanometer position onlyb)Changesc)Changes and it depends on cell position onlyd)Remains unchangedCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When the position of cell and galvanometer in a Wheatstone bridge is inter-changed, its balanced conditiona)Changes and depends on galvanometer position onlyb)Changesc)Changes and it depends on cell position onlyd)Remains unchangedCorrect answer is option 'D'. Can you explain this answer?.
Solutions for When the position of cell and galvanometer in a Wheatstone bridge is inter-changed, its balanced conditiona)Changes and depends on galvanometer position onlyb)Changesc)Changes and it depends on cell position onlyd)Remains unchangedCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12. Download more important topics, notes, lectures and mock test series for Class 12 Exam by signing up for free.
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