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When a bar magnet is thrust at the same speed into a coil having twice the number of loops, the induced voltage is the same, no different. half. twice as much. four times as much. none of the above

Respuesta :

Answer:

Twice as much

Explanation:

Changing magnetic flux through a coil produce emf in the coil.

According to Faraday's law induced voltage is given by

āˆˆ= - N *dŠ¤ \ dt -----------( 1 )

N is number of turns of coil

Š¤ is flux linkage

dŠ¤/dt is rate of change of flux

From equation (1) it is clear if rate of change of flux is the same but we Ā doubled the number of loops (i.e Nā‚‚= 2Nā‚) the voltage induced will be double.

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