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In relation to a transformer, the relati...

In relation to a transformer, the relation `(n_p)/(n_s)=10` indicated that

A

the secondary voltage is 10 times the primary voltage

B

the primary current is 10 times the secondary voltage

C

there are 10 turns in the primary and only one turn in the secondary

D

for every 10 turns in the primary there is only one turns in the secondary

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The correct Answer is:
D
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MARVEL PUBLICATION-ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENTS -TEST YOUR GRASP - 16
  1. In relation to a transformer, the relation (np)/(ns)=10 indicated that

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  2. A coil having an area of 2m^(2) is placed in a magnetic field which ch...

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  3. A straight conductor of length 2 is moves a velocity of 2 m//s, in a m...

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  4. The magnetic flux passing perpendicular to the plane of a coil given b...

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  5. Two identical circular loops of metal wire are lying on a table withou...

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  6. A telegraph wire of length 2500m, is kept in E-W direction, at a heigh...

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  7. When the current in a coil changes from 2A to 4A in 0.05 sec, the e.m....

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  8. Two coil A and B are placed in a circuit. When current changes by 8 Am...

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  9. Two coils P and S have a mutual inductance of 5 xx 10^(-3)H. If the cu...

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  10. The primary and secondary voltage of an ideal step down transformer ar...

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  11. A step down transformer has a turn ratio of 20 : 1. If 8 volt are deve...

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  12. A step down transformer of efficiency 80% is used on a 1000V line to d...

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  13. A coil 10 turns and area 10^(-2)m^(2) rotates in a magnetic field of 0...

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  14. An alternating e.m.f. is given by E=10 cos omega t. If the frequency i...

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  15. In an A.C. Circuit, the current is given by I=6 sin(200 pi t+(pi)/6)...

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  16. An alternating e.m.f. given by e=200 sin 50 t is applied to a circuit ...

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  17. An alternating voltage is represented by V=80 sin(100 pi t)cos(100 p...

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  18. In an A.C. circuit, E=100 sin (500 t) volt and I=1000 sin(500 t +(pi)/...

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  19. In an A.C. circuit, a resistance R=40 Omega and an inductance L are c...

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  20. The inductance of a coil is 10 H. What is the ratio of its reactance w...

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  21. For tuning radio and T.V. circuits, series resonance circuits are used...

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