Question:
An ammeter and a microammeter are converted from the same galvanometer.
The resistance required for the conversion is
An ammeter and a microammeter are converted from the same galvanometer.
The resistance required for the conversion is
Show Hint
Ammeter → low resistance,
Microammeter → high resistance.
Updated On: Feb 11, 2026
- higher for microammeter
- lower for ammeter
- lower for microammeter
- higher for ammeter
Hide Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Step 1: Understanding conversions.
To convert a galvanometer into an ammeter, a low resistance shunt is connected in parallel so that large current bypasses the galvanometer.
Step 2: Microammeter conversion.
To convert a galvanometer into a microammeter, a high resistance is added to limit the current through the galvanometer.
Step 3: Comparison.
Since a microammeter measures very small currents, it requires a much higher resistance compared to an ammeter.
Step 4: Conclusion.
The resistance required is higher for microammeter.
To convert a galvanometer into an ammeter, a low resistance shunt is connected in parallel so that large current bypasses the galvanometer.
Step 2: Microammeter conversion.
To convert a galvanometer into a microammeter, a high resistance is added to limit the current through the galvanometer.
Step 3: Comparison.
Since a microammeter measures very small currents, it requires a much higher resistance compared to an ammeter.
Step 4: Conclusion.
The resistance required is higher for microammeter.
Was this answer helpful?
0
0
Top Questions on Waves and Oscillations
- The time period of a simple harmonic oscillator is \[ T=2\pi\sqrt{\frac{m}{k}}. \] Measured value of mass \(m\) has an accuracy of \(10%\) and time for 50 oscillations of the spring is found to be \(60\,\text{s}\) using a watch of 2 s resolution. Percentage error in determination of spring constant \(k\) is:
- JEE Main - 2026
- Physics
- Waves and Oscillations
- The displacement of a particle executing simple harmonic motion with time period \(T\) is expressed as \[ x(t)=A\sin\omega t, \] where \(A\) is the amplitude of oscillation. If the maximum value of the potential energy of the oscillator is found at \[ t=\frac{T}{2\beta}, \] then the value of \(\beta\) is ________.
- JEE Main - 2026
- Physics
- Waves and Oscillations
- A cylindrical block of mass $M$ and area of cross section $A$ is floating in a liquid of density $\rho$ with its axis vertical. When depressed a little and released the block starts oscillating. The period of oscillation is ___.
- JEE Main - 2026
- Physics
- Waves and Oscillations
Using a variable frequency ac voltage source the maximum current measured in the given LCR circuit is 50 mA for V = 5 sin (100t) The values of L and R are shown in the figure. The capacitance of the capacitor (C) used is_______ µF.
- JEE Main - 2026
- Physics
- Waves and Oscillations
- Using a simple pendulum experiment $g$ is determined by measuring its time period $T$. Which of the following plots represent the correct relation between the pendulum length $L$ and time period $T$?
- JEE Main - 2026
- Physics
- Waves and Oscillations
View More Questions
Questions Asked in MHT CET exam
- What is the standard electrode potential of the half-reaction: \[ \text{Cu}^{2+} + 2e^- \rightarrow \text{Cu} \, (\text{solid})? \] Given that the standard electrode potential for the half-reaction: \[ \text{Ag}^+ + e^- \rightarrow \text{Ag} \, (\text{solid}) \quad \text{is} \, +0.80 \, \text{V}. \] Also, the cell potential for the following reaction is: \[ \text{Cu}^{2+} + 2\text{Ag} \rightarrow \text{Cu} + 2\text{Ag}^+ \] is \( 0.46 \, \text{V} \).
- MHT CET - 2025
- Electrochemistry
- A cylindrical pipe has a radius of \( 0.1 \, \text{m} \). If the speed of water flowing through the pipe is \( 2 \, \text{m/s} \), calculate the volume flow rate of water through the pipe.
- MHT CET - 2025
- mechanical properties of fluid
- A particle is moving with a constant velocity of 5 m/s in a circular path of radius 2 m. What is the centripetal acceleration of the particle?
- MHT CET - 2025
- centripetal acceleration
- A ball is thrown vertically upwards with an initial velocity of 20 m/s. Calculate the time it takes for the ball to reach the highest point. (Assume \( g = 9.8 \, \text{m/s}^2 \))
- MHT CET - 2025
- laws of motion
- A charge of 2 $\mu C$ is placed in an electric field of intensity \( 4 \times 10^3 \, \text{N/C} \). What is the force experienced by the charge?
- MHT CET - 2025
- Electric charges and fields
View More Questions