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Quantity that remains unchanged in a tra...

Quantity that remains unchanged in a transformer is

A

Voltage

B

current

C

Frequency

D

Phase

Text Solution

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The correct Answer is:
C
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AAKASH INSTITUTE ENGLISH-Mock Test 33: PHYSICS-Example
  1. The average value of an alternating voltage V=V(0) sin omega t over ...

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  2. There is no resistance in the capacitive circuit shown. Then charge on...

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  3. Which of the following is true for an ideal capacitor connected to a s...

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  4. A direct current of 5 amp is superimposed on an alternating current I=...

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  5. For an ideal inductor, connected across a sinusoidal ac voltage source...

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  6. A resistor and a capacitor are connected in series with an AC source. ...

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  7. The following series L-C-R circuit , when driven by an emf source of a...

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  8. In an electrical circuit R,L, C and a.c voltage source are all connect...

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  9. If a 16Omegaresistance and 12 Omega inductive reactance are present in...

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  10. The diagram shows a capacitor C and a resistor R connected in series t...

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  11. Define quality factor in electrical resonance circuit. Find quality fa...

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  12. If resistance R =100 Omega, inductance L = 12mH and capacitance C=15mu...

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  13. A 12 Omega resistor and a 0.21 H inductor are connected in series to a...

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  14. In a circuit L,C and R are connected in series with an altematng volta...

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  15. A capacitor of capacitance Chas initial charge Q0 and connected to an ...

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  16. In an AC circuit, the instantaneous values of e.m.f and current are e...

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  17. In series LCR circuit, the phase difference between voltage across L a...

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  18. In an ideal transformer the number turns of primary and secondary coil...

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  19. Quantity that remains unchanged in a transformer is

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  20. The primary and secondary coils of a transforme have 50 and 1500 turns...

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