Science > Physics > Magnetic Effect of Electric Current > Ampere’s law In this article, we shall study the Ampere’s law and its application in finding magnetic induction due to long straight conductor, solenoid and toroid. Statement: The line integral of the magnetic field B around any closed path is equal to μ0 times the net […]
Science > Physics > Circular Motion > Numerical Problems: Circular Motion For uniform circular motion Angular speed ω, Linear speed t, kinetic energy, Angular momentum (L) are constant. The angular acceleration α and the tangential acceleration aT are zero. Problems Based on Hands of Clock: The second hand of a clock takes 60 seconds to […]
Science > Physics > Oscillations: Simple Harmonic Motion > Numerical Problems on Maximum Velocity and Maximum Acceleration. Example – 1: a particle executing simple harmonic motion has a period of 6 s and its maximum velocity during oscillations is 6.28 cm/s. Find the time taken by it to describe a distance of 3 cm from […]
Science > Physics > Oscillations: Simple Harmonic Motion > Numerical Problems on Displacement, Velocity, and Acceleration of Particle Performing S.H.M. in this article, we shall study to calculate the initial phase, displacement, velocity, and acceleration of a body performing S.H.M. Example – 1: A particle performs a linear S.H.M along a path 10 cm long. […]
Science > Physics > Oscillations: Simple Harmonic Motion > Simple Harmonic Motion In this article, we shall study, the concept of linear simple harmonic motion (S.H.M.) and derive expressions for displacement, velocity, acceleration, and period of n object performing the linear simple harmonic motion. Linear simple harmonic motion is defined as the motion of a […]
Science > Physics > Oscillations: Simple Harmonic Motion > Introduction In this article, we shall study the concept, oscillation, oscillatory motion, and simple harmonic motion. Oscillatory Motion: A to and fro periodic motion of a body along a definite path is called oscillatory motion. e.g. the motion of heavy bob of a pendulum, the motion […]
Science > Physics > Elasticity > Concept of Strain Energy In this article, we shall study, work done in stretching wire and the concept of strain energy. Work done in Stretching a Wire: Consider a wire of length ‘L’ and area of cross-section ‘A’ be fixed at one end and stretched by suspending a load […]
Science > Physics > Surface Tension >Change in Surface Energy In this article. we shall study numerical problems on the change in surface energy due to breaking of drop or coalescence of number of drops into a one drop. Example – 01: Two mercury drops one of radius 2 mm and the other of radius […]
In this article, we shall study numerical problems to find surface tension of liquid. Science > Physics > Surface Tension > Numerical Problems on Surface Tension Example – 1: A needle 5 cm long can just rest on the surface of the water without wetting. What is its weight? Surface tension of water = 0.07 […]
Science > Physics > Surface Tension > Concept of Surface Energy In this article, we shall study the concept of surface energy, relation between the surface energy and surface tension. A molecule on the surface of a liquid experiences a downward pull due to surface tension. If a molecule deep inside the liquid is to […]