 # Combination of Resistances in Parallel

Combination of Resistances in Parallel Resistance in a conductor can be defined as the opposition offered to the flow of electrons. Resistance can be joined to each other in two ways: Parallel Combination: If the resistances are connected between the same two points such that the potential drop across each resistance is same, then the Read more about Combination of Resistances in Parallel[…] # Solid Angle Subtended by a Disk at a Point on its Axis

Solid Angle Subtended by a Disk at a Point on its Axis Solid angle is the cone subtended by an area at the point of interest. The magnitude of solid angle subtended by an area S at a point is defined as its center. Therefore, total solid angle around a point in space is the Read more about Solid Angle Subtended by a Disk at a Point on its Axis[…] # Excess Pressure inside a Liquid Drop and a Bubble

Excess Pressure inside a Liquid Drop and a Bubble On the concave face of a curved surface there is always an excess pressure over the convex face of the surface. The magnitude of excess pressure can be obtained by studying the formation of air and soap bubbles. Excess Pressure in an Air Bubble in Liquid: Read more about Excess Pressure inside a Liquid Drop and a Bubble[…] # Horizontal Range in Projectile Motion

Horizontal Range in Projectile Motion Projectile motion is the motion of an object thrown or projected into the air, subjected to only the acceleration of gravity. The object is called a projectile and its path is called as trajectory. What is Horizontal Range? Horizontal Range is the distance covered by the projectile during its time Read more about Horizontal Range in Projectile Motion[…] # Friction Acting on Multiple Surfaces

Friction Acting on Multiple Surfaces 1. If Force Applied on Lower Block: The maximum friction acting on m₂ is f₂ = µ₂m₂g. If the system moves with the common acceleration, then F – µ₁ (m₁ + m₂) g = (m₁ + m₂) a and f₂ = m₂a Maximum acceleration of m₂, µ₂m₂g = m₂ amax Read more about Friction Acting on Multiple Surfaces[…] # Angle of Repose (Or) Angle of Sliding

Angle of Repose (Or) Angle of Sliding The angle of repose or angle of sliding is defined as the minimum angle of inclination of a plane with the horizontal such that a body placed on the plane just begins to slide down. Its value depends on the material and nature of the surfaces in contact. Read more about Angle of Repose (Or) Angle of Sliding[…] # Time of Flight

Time of Flight Let a particle is projected with velocity u at angle θ with the horizontal. We can write the x and y components of the initial velocity as ux = u cosθ, uy = u sinθ. The acceleration of the particle in x and y direction is ax = 0 and ay = Read more about Time of Flight[…] # Different Cases in Acceleration – Time Graph

Different Cases in Acceleration – Time Graph Acceleration is the rate at which the velocity changes with respect to time. It is measured in m/ sec² in standard unit system. To obtain acceleration vs. time graph we plot acceleration on y-axis and time on x-axis. There are three possible cases that we arrive on: 1. Read more about Different Cases in Acceleration – Time Graph[…] # Acceleration – Time Graph of Various Types of Motions of a Particle

Acceleration – Time Graph of Various Types of Motions of a Particle Let the acceleration be given as the function of time, i.e. a = f (t). Then the elementary change in velocity during a time dt is . We can observe that in a – t graph, is equal to the area of the Read more about Acceleration – Time Graph of Various Types of Motions of a Particle[…] # Derivations of Equations of Motions by Calculus Method

Derivations of Equations of Motions by Calculus Method Let a particle start moving with velocity u at time t = 0 along a straight line. The particle has a constant acceleration a. Let at t = t, its velocity becomes v and it covers a displacement of s during this time. v = ∫adt + Read more about Derivations of Equations of Motions by Calculus Method[…]