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According to …………………law, the polarity of...

According to …………………law, the polarity of ………………………is such that it………………… responsible for……………….

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The correct Answer is:
Lenz's ; emf induced ; oppose the change in magnetic flux ; its production.
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PRADEEP-ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT-Exercise
  1. An e.m.f. is induced in a coil when ……………………. Linked with the coil ………...

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  2. The magnetic of ………………..in a circuit is …………..to the……………………linked wit...

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  3. According to …………………law, the polarity of ………………………is such that it……………...

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  4. Lenz's law is consequence of the law of conservation of

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  5. Eddy curents are the current …………………….when …………………….changes.

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  6. If omega is angular frequency of a.c., then the reactance offered by i...

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  7. Self induction of a coil is said to be…………….. When a current change………...

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  8. Self inductance of a solenoid varies……………………as the ………………of the number...

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  9. Coefficient of mutual inductance of two coil is numerically …………………lin...

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  10. A coil with an average diameter of 0.02 m is placed perpendicular to a...

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  11. An air cored solenoid of length 50 cm and area of cross section 20 m^(...

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  12. A magnetic field of flux density 1.0 Wb m^(-2) acts normal to a 80 tur...

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  13. A square copper coil of each side 8 cm consists of 100 turns. The coil...

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  14. The area of a coil of 25 turns is 1.6 cm^(2). This coil is inserted in...

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  15. A uniform magnetic field B exists in a direction perpendicular to the ...

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  16. A wire 88 cm long bent into a circular loop is placed perpendicular to...

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  17. A closely wound rectangular coil of 200 turns and size 0.30 xx 0.05 m ...

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  18. A coil of 100 loops is pulled in 0.01 s between the pole of a magnet, ...

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  19. A rectangular conductor LMNO is place in a uniform magnetic field of 0...

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  20. A circular copper disc of 10 cm radius rotates at 20 pi radian//sec ab...

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