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What is called Resolution of Vectors? In analyzing the vector problems, sometimes we require to evaluate the effect of a vector in certain directions of our interest. This is done by resolution of vector inRead More →

What is cslled capillarity? Capillarity is the phenomenon of rising or dipping of liquid surface in a narrow tube when it is dipped in the liquid. Capillarity is caused due to the properties of adhesionRead More →

What is Poiseuille’s formula? Poiseuille’s formula gives the discharge of a viscous fluid from a capillary tube. Consider a horizontal capillary tube of length and diameter of cross section . A liquid of coefficient ofRead More →

What is called centre of Hydrostatic pressure? The point at which the resultant hydrostatic pressure acts on the immersed surface is called centre of pressure. The intensity of pressure is not uniform at all pointsRead More →

What is Metacentre & Metacentric height? Metacentre is the point at which the line of action of the upthrust will meet the normal axis of a floating body, when the body is tilted by aRead More →

What is a Micro Manometer? A micro manometer is used for precise measurement of pressure. In micro manometer, the device is made sensitive by making one limb of tube much larger i.e. about times moreRead More →

What is a Differential Manometer? A differential manometer consists of a tube containing a heavy liquid, whose two ends are connected to the two points of same pipe line or different pipe lines, whose differenceRead More →

What is called fluid pressure? The fluid pressure at a point on a surface in contact with a liquid is the thrust acting normally per unit area around that point. Let, a total force orRead More →

What is meant by “Thrust of a liquid”? Total force exerted on a surface in contact of a liquid mass is called thrust of liquid. In equilibrium, a liquid exerts a force on any surfaceRead More →

What is called an Inductor? An inductor is component used in electrical or electronic circuits to store energy. The energy stored in inductor is in the form of magnetic energy. An inductor impedes or opposesRead More →

What is Induced EMF? Induced EMF is the generated electromotive force which drives a current in a closed conducting loop when it is moved in a magnetic field. Induced EMF is generated in a conductingRead More →

Find torque on current loop placed in a Magnetic Field. When a current carrying loop or coil is placed in a magnetic field, it will experience a magnetic force which produces a torque in theRead More →

What is an Ammeter? An ammeter is an instrument used to measure the electric current in an electric circuit. An ammeter is a modified form of a galvanometer. An Ammeter works on the principle that,Read More →

What is Ampere’s Circuital Law? Ampere’s Circuital Law is an approach to find the intensity of magnetic field at a point produced by a wire carrying a current. It states that – The line integralRead More →

Magnetic Field by Circular loop carrying current Magnetic field produced by a circular loop carrying a current is obtained by the application of Biot-savart law. Consider about a point on the axis of a circularRead More →