Question:
A Wheatstone bridge is used to measure ________.
A Wheatstone bridge is used to measure ________.
Show Hint
Balanced condition: $R_1/R_2 = R_3/R_4$.
Updated On: Jun 26, 2026
- unknown resistances
- direct current
- alternating current
- electric power
- voltage
Show Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Step 1: Concept
A Wheatstone bridge is an electrical circuit used to measure an unknown electrical resistance by balancing two legs of a bridge circuit.
Step 2: Meaning
It consists of four resistors arranged in a diamond shape.
Step 3: Analysis
When the bridge is balanced, no current flows through the galvanometer, allowing the calculation of one resistance in terms of the other three.
Step 4: Conclusion
Its primary application is measuring unknown resistances. Final Answer: (A)
A Wheatstone bridge is an electrical circuit used to measure an unknown electrical resistance by balancing two legs of a bridge circuit.
Step 2: Meaning
It consists of four resistors arranged in a diamond shape.
Step 3: Analysis
When the bridge is balanced, no current flows through the galvanometer, allowing the calculation of one resistance in terms of the other three.
Step 4: Conclusion
Its primary application is measuring unknown resistances. Final Answer: (A)
Was this answer helpful?
0
0
Top KEAM Physics Questions
- A body oscillates with SHM according to the equation (in SI units), $x = 5 cos \left(2\pi t +\frac{\pi}{4}\right) .$ Its instantaneous displacement at $t = 1$ second is
Kepler's second law (law of areas) of planetary motion leads to law of conservation of
- Two capillary tubes A and B of diameter $1\, mm$ and $2\, mm$ respectively are dipped vertically in a liquid. If the capillary rise in A is 6 cm, then the capillary rise in B is
- In the circuit given in figure, 1 and 2 are ammeters. Just after key K is pressed to complete the circuit, the reading will be
- A plate has a length $ 5\pm 0.1\text{ }cm $ and breadth $ 2\pm 0.01\text{ }cm $ . Then the area of the plate is:
View More Questions
Top KEAM Wheatstone Bridge Questions
- A Wheatstone network is balanced with respective resisto$ 5Ω. l0Ω. 20 Ω and 40 Ω in tbe P. 0. R and S arms. If a 40 Ω) resisror is connecred across S arm. Then the bridge is again balanced by connecting
- A Wheatstone network ABCDA has the resistances 20 \(\Omega\), 10 \(\Omega\), and 12 \(\Omega\) in AB, BC, and DA arms respectively in which the galvanometer is connected across BD. For null deflection in the galvanometer, the resistance in CD arm should be:
Top KEAM Questions
- i.$\quad$ They help in respiration ii.$\quad$ They help in cell wall formation iii.$\quad$ They help in DNA replication iv. $\quad$They increase surface area of plasma membrane Which of the following prokaryotic structures has all the above roles?
- A body oscillates with SHM according to the equation (in SI units), $x = 5 cos \left(2\pi t +\frac{\pi}{4}\right) .$ Its instantaneous displacement at $t = 1$ second is
- The pH of a solution obtained by mixing 60 mL of 0.1 M BaOH solution at 40m of 0.15m HCI solution is
Kepler's second law (law of areas) of planetary motion leads to law of conservation of
- If $\int e^{2x}f' \left(x\right)dx =g \left(x\right)$, then $ \int\left(e^{2x}f\left(x\right) + e^{2x} f' \left(x\right)\right)dx =$
View More Questions