Toll free: 1- 877- 252 - 7763 | Fax: 1- 425- 458- 9358

Least Count Homework Help

Get customized homework help now!

Least Count

The "Least Count" of any measuring equipment is the smallest quantity that can be measured accurately using that instrument.Thus Least Count indicates the degree of accuracy of measurement that can be achieved by the measuring instrument.

  Minimum measurement that can be made by a measuring device is known as " LEAST COUNT'.

  Least count (vernier callipers) = minimum measurement on main scale / total number of divisions on

All measuring instruments used in physics have a least count. A meter ruler's least count is 0.1 centimeter; an electronic scale has a least count of 0.001g, although this may vary; a vernier caliper has a least count of 0.02 millimeters, although this too may vary; and micrometer screwgauge's least count is 0.01 millimeter and of course a conventional ruler has .01m.

The Least Count is the discrimination of a vernier instrument. All measuring instruments used in the subject of physics can be used to measure various types of objects, but all do so without considering the detail of accuracy.

No measuring instrument used in physics is accurate and always has an error when readings are taken. Even the latest technology used in measuring objects also have an error where reading are concerned. Various names can be given to this error. The Least Count, uncertainty or maximum possible error are the terms normally used in a physics course, although this may vary with different syllabuses.

The error made in an instrument can be compared with another by calculating the percentage uncertainty of each of the readings obtained. The one with the least uncertainty is always taken to measure objects, as all measurements are required with accuracy in mind. The percentage uncertainty is calculated with the following formula: (Maximum Possible error/Measurement of the Object in question) *100

The smaller the measurement, the larger the percentage uncertainty. The least count of an instrument is indirectly proportional to the accuracy of the instrument. is a pioneer in online tutoring and homework help. Our tutors are highly qualified in their subject areas and have been helping students since 2003. For immediate Least Count homework help, use the homework-help form present on this page. You can also get help with your Least Count homework by writing to

For instant assistance, click here to start a live-chat with us.

Physics Homework Help
Name* :
Email* :
Country* :
Phone* :
Subject* :
Upload Homework* :
Upload another homework (upto 5 uploads max.)
Due Date*
Type Your Questions OR Instructions Below
Type this code and send us your least count homework questions to get written lessons from expert least count tutors.
(Type Security Code - case sensitive)
By clicking on the "Get Quote" button, you agree to the Terms and Conditions of Classof1.
Courses/Topics we help on
Applied Physics with Lab Physics with Lab Free Body Diagrams
Free Fall of Objects Projectile Motion Centripetal Force and Newton's Laws
Momentum and Collisions Rotational Dynamics Gravitational Potential and Potential Energy
Variation of 'g' with Altitude and Depth Heat Transfer and Thermal Expansion PV Diagrams and Work Done Calculation
Capacitor and Energy Stored in a Capacitor Electric Current, Resistance and Electric Power Magnetic Field Produced by a Current Carrying Wire, Biot - Savart Law
Electromagnetic Induction and LCR Circuits The Doppler Effect and Sound Waves Convex Mirror, Concave Mirror
Atomic Number and Nuclear Binding Energy Photo Electric Effect Flow Rate, Buoyancy and Bernoulli's Theorem
Velocity, Acceleration and Related Graphs Work, Energy and Power Angular Momentum
The Spring-Block Oscillator (SHM) Electric Field and Electric Potential Difference Alternating Circuits (AC)
Waves on Strings, Open Organ and Closed Organ Pipes Convex Lens and Concave Lens Density and Pressure
IB Physics Mechanics and kinematics Gravitational mechanics
Waves and oscillations Mathematical physics Optics
Properties of matter Atomic physics Nuclear physics
Thermal physics Sounds Current electricity
Magnetism Crystal growth and crystallography Electromagnetism
Semiconductor electronics Quantum mechanics