9th, Physics

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what is dynamics

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Motion in two dimensions, Motion of an object in a plane is known two dimen...

Motion of an object in a plane is known two dimensional (2-D) motions. For 2-D motion acceleration or velocity can be defined by two elements in any two mutually perpendicular dire

Voltages relative to earth, Voltages relative to earth It is very commo...

Voltages relative to earth It is very common in electrical circuits to have an earth connection. This earth connection has no effect on potential differences across components

Explain about soft iron armatur, A force of 2.5kN is needed to lift a load....

A force of 2.5kN is needed to lift a load. How much work is done if the load is lifted by 500cm? An electromagnet exerts a force of 12N and moves a soft iron armature by a dist

Find the electric flux, The elctric field in a certain region of space has ...

The elctric field in a certain region of space has components E x = 6.0 N/C, E y = 7.0 N/C, and E z = 0. Find the electric flux though the surface x = 6 y , 0 x

Determine the mutual inductance of the two coils, When the current in the p...

When the current in the primary coil of 400 turns of a magnetic circuit, enhances linearly from10mA to 35mA in 100ms, an e.m.f. of 75mV is induced into the secondary coil of 240 tu

Draw a labelled diagram of an ac generator, Describe with the help of a lab...

Describe with the help of a labelled diagram the underlying principle and working of a step-up transformer. Why cannot such a device be used to step-up D.C. voltage? Or Dr

Define coulombs law, Define Coulombs Law Coulomb's Law:  The magnitude ...

Define Coulombs Law Coulomb's Law:  The magnitude of the electric force among two electric point charges is proportional to the product of the two charges (Q1 and Q2) separated

Moving coil galvanometer, sensitivity of moving coil galvanometer can be in...

sensitivity of moving coil galvanometer can be increased by decreasing?

ACTIVITY, IN SUCCESSIVE DISINTEGRATION WHY DOUGHTER ELEMENT NOT DECAY WHEN ...

IN SUCCESSIVE DISINTEGRATION WHY DOUGHTER ELEMENT NOT DECAY WHEN IT FORM BUT DECAY AFTER A FIEW TIME FROM ITS FORMATION

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