Question

explain working of seismograph ​

Answer 1

a seismograph are used to measure the intensity of earthquake

we use seismograph in a simple way first set the seismograph in the land and when seismograph are set in the land than if earthquake are came then the drum of earthquake are also see as a zig zag motion in the seismograph drum

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Answer 2

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How seismograph works

• Seismograph instruments are placed on the surface of the earth so, whenever the ground starts shaking the instrument's case moves.
• There is a seismometer inside the seismograph so,only seismograph instruments case moves while seismometer remains still without any movement.
• Seismograph instruments have a large powerful magnetic system for detection and case is wrapped with numerous coils of wire.
• When an earthquake happens the case moves in relative the magnet move and generates an electric signals to the wire which further sent to the computer to create a seismogram.