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A power transmission line feeds input power at 2300 V to a stepdown transformer with its primary windings having 4000 turns. What should be the number of turns in the secondary in order to get output power at 230 V?

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A power transmission line feeds input power at 2200 V to a step-down transformer with its primary windings having 3000 turns. Find the number of turns in the secondary to get the power output at 220 V.

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An ideal transformer is used to decrease an alternating voltage from 880 V and 220 V. If the number of turns of its primary coil is 4000, then what is that in the secondary coil?

The turns ratio of an ideal transformer is 1:n. the input to output power transfer ratio is

A transformer is active between the voltage 230V. If the turn ratio of coils in primary and secondary coil 1:10 then what is the current is primary coil if the secondary coil has current 2A?

Transformer is a device used to increase or decrease the voltage in the transmission line according to requirement, Generally the input line voltage is fed in a primary coil and the output line voltage is obtained from the terminals of another coil In an ideal transformer, the primary and secondary coils are linked is such a way that there is no loss of magnetic flux and electrical energy. In an ideal transformer, if the number of turns and input voltage across the terminals of the primary coils be N_1 and V_1 , then the output voltage at the two terminals of the secondary coil V_2=V_1.N_2/N_1 , where N_2 is the number of turns in the secondary coil . In question (i) if the input power of the transformer be 44 W, then output power is

Transformer is a device used to increase or decrease the voltage in the transmission line according to requirement, Generally the input line voltage is fed in a primary coil and the output line voltage is obtained from the terminals of another coil In an ideal transformer, the primary and secondary coils are linked is such a way that there is no loss of magnetic flux and electrical energy. In an ideal transformer, if the number of turns and input voltage across the terminals of the primary coils be N_1 and V_1 , then the output voltage at the two terminals of the secondary coil V_2=V_1.N_2/N_1 , where N_2 is the number of turns in the secondary coil . The ratio of number of turns of the primary and secondary coils of an ideal transformer is 2:1 IF the input voltage is 440 V, then output voltage is if the input power of the transformer be 44 W, then output power is In the above mentioned transformer the input and output currents are respectively.

The primary coil of an ideal step-up transformer has 100 turns, and the transformation ratio is also 100. The input voltage and power are 220 V and 1100 W , respectively, Calculate number of turns in the secondary

Transformer is a device used to increase or decrease the voltage in the transmission line according to requirement, Generally the input line voltage is fed in a primary coil and the output line voltage is obtained from the terminals of another coil In an ideal transformer, the primary and secondary coils are linked is such a way that there is no loss of magnetic flux and electrical energy. In an ideal transformer, if the number of turns and input voltage across the terminals of the primary coils be N_1 and V_1 , then the output voltage at the two terminals of the secondary coil V_2=V_1.N_2/N_1 , where N_2 is the number of turns in the secondary coil . In the above mentioned transformer the input and output currents are respectively.

NCERT BANGLISH-ALTERNATING CURRENT-ADDITIONAL EXERCISES
  1. An LC circuit contains a 20 mH inductor and a 50 muF capacitor with an...

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  2. A coil of inductance 0.50 H and resistance 100Omega is connected to a ...

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  3. If the circuit is connected to a high frequency supply (240 V, 10 kHz)...

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  4. A 100 muF capacitor in series with a 40 Omega resistance is connected ...

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  5. If the circuit is connected to a 110 V, 12 kHz supply? Hence, explain ...

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  6. Keeping the source frequency equal to the resonating frequency of the ...

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  7. A circuit containing a 80 mH inductor and a 60 muF capacitor in series...

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  8. Suppose the circuit in has a resistance of 15 W. Obtain the average p...

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  9. A series LCR circuit with L = 0.12 H, C = 480 nF, R = 23 Omega is conn...

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  10. Obtain the resonant frequency and Q-factor of a series LCR circuit wit...

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  11. In any ac circuit, is the applied instantaneous voltage equal to the a...

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  12. A capacitor is used in the primary circuit of an induction coil.

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  13. An applied voltage signal consists of a superposition of a dc voltage ...

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  14. A choke coil in series with a lamp is connected to a dc line. The lamp...

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  15. Why is choke coil needed in the use of fluorescent tubes with ac mains...

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  16. A power transmission line feeds input power at 2300 V to a stepdown tr...

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  17. At a hydroelectric power plant, the water pressure head is at a height...

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  18. A small town with a demand of 800 kW of electric power at 220 V is sit...

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  19. Do the same exercise as above with the replacement of the earlier tran...

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