A potentiometer is an ideal device of measuring potential differe… - Vidyadip

MCQ

A potentiometer is an ideal device of measuring potential difference because

A
It uses a sensitive galvanometer
✓
It does not disturb the potential difference it measures
C
It is an elaborate arrangement
D
It has a long wire hence heat developed is quickly radiated

✓

Answer

Correct option: B.

It does not disturb the potential difference it measures

(b) In balance condition, potentiometer doesn't take the current from secondary circuit.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "MCQ" from Current Electricity→Current Electricity — all question types→JEE physics STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

If a diamagnetic solution is poured into a $U-$ tube and one arm of this $U-$ tube placed between the poles of a strong magnet with the meniscus in a line with the field, then the level of the solution will

Each of the properties of sound listed in column A primarily depends on one of the quantities in column B. Choose the matching pairs from two columns

Column A Column B
Pitch Waveform
Quality Frequency
Loudness Intensity

Convergence of concave mirror can be decreased by dipping in

Glass has refractive index $\mu$ with respect to air and the critical angle for a ray of light going from glass to air is $\theta$. If a ray of light is incident from air on the glass with angle of incidence $\theta$, the corresponding angle of refraction is

In a step-up transformer the turn ratio is $1:10.$ A resistance of $200$ ohm connected across the secondary is drawing a current of $0.5 \mathrm{~A}$. What is the primary voltage and current

A ball is thrown upwards at an angle of 60 to the horizontal. It falls on the ground at a distance of $90 m$. If the ball is thrown with

The wavelength of emission line spectrum and absorption line spectrum of a substance are related as

The equation of a travelling wave is given by $y=0.5 \sin (20 x-400 t)$ where $x$ and $y$ are in meter and $t$ is in second. The velocity of the wave is

One conducting $U$ tube can slide inside another as shown in figure, maintaining electrical contacts between the tubes. The magnetic field $B$ is perpendicular to the plane of the figure. If each tube moves towards the other at a constant sped $v$ then the emf induced in the circuit in terms of $B, l$ and $v$ where $l$ is the width of each tube, will be

How does the red shift confirms that the universe is expanding