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Its working is based on the principle of tangent law. It having of a small compass needle, pivoted at the centre of a circular box. The box is reserved in a wooden frame having two meter scale fitted on its two arms. Reading of a scale at any point directly gives the distance of that point from the centre of compass needle.
Waves: A disturbance that travels by a medium is called wave.
a) Explain ampere's law and calculate magnetic field at any point P beacuse of (i) Infinite long wire (ii) Inside a solenoid (iii) Inside a toroid b) Explain Biot S
A girl throws a 0.1 kilogram ball at a wall. The ball hits the wall perpendicularly with a velocity of 5 meters per second and then bounces straight back with a velocity of 4 mete
The variable resistor is a resistor whose value can be accustomed by turn a shaft or sliding a control. They are also referred to as potentiometers or rheostats and permit the resi
the magnetic field at a dictance of 2cm from the axis of a straight conductor carrying current is 12mT.Find the currentin the conductor?
The magnetic field B inside a solenoid, having a current of 5 A, is 3.14 X 10 -2 T. Determine the number of turns per unit length of the solenoid.
Commutator: The commutator is a form of rotating switch placed among the armature and external circuit and so arranged that it will reverse the link with the external circuit a
It is the distance travelled by the disturbance in single time period. It only relays on the properties of the medium and it independent of time and position.
how to find magnetic moment and the principle behind the magnetometer?
Tell some examples of Like and Unlike Parallel Forces.
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