Faraday's law of electromagnetic induction is the principle behind the working of ________________.

security sensors

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tape recorders

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ATM cards

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All of the above.

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Solution

The correct option is D All of the above.
Some of the applications of Faraday's law of electromagnetic induction include the working of tape recorders, ATM cards and security sensors etc. Faraday's law of electromagnetic induction states that whenever a current carrying conductor is placed in a magnetic field, there will be an induced emf(voltage) in the conductor which is equal to the rate of change of magnetic flux through it.

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State whether the following statements are true of false :

(a) A generator works on the principle of electromagnetic induction.

(b) A motor works on the principle of electromagnetic induction.

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(a) electrochemical induction (b) electromagnetic induction

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