Home
Class 12
PHYSICS
The overall efficiency of a transformer ...

The overall efficiency of a transformer is 90%. The transformer is rated for an output of 9000 watt. The primary voltage is 1000 vot. The ratio of turns in the primary to the secondary coil is 5: 1. The iron losses at full ioad are 700 watt. The primary coil has a resistance of 1 ohm
In the above, the current in the primary coil is:

A

9amp

B

10amp

C

1amp

D

4.5amp

Text Solution

Verified by Experts

Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ALTERNATING CURRENT

    RESONANCE|Exercise EXERCISE-12|1 Videos
  • ALTERNATING CURRENT

    RESONANCE|Exercise EXERCISE-13|1 Videos
  • ALTERNATING CURRENT

    RESONANCE|Exercise EXERCISE-10|1 Videos
  • ATOMIC PHYSICS

    RESONANCE|Exercise Advanved level problems|17 Videos

Similar Questions

Explore conceptually related problems

The overall efficiency of a transformer is 90%. The transformer is rated for an output of 9000 watt. The primary voltage is 1000 vot. The ratio of turns in the primary to the secondary coil is 5: 1. The iron losses at full ioad are 700 watt. The primary coil has a resistance of 1 ohm In the above, the current loss in the primary coil is:

The overall efficiency of a transformer is 90%. The transformer is rated for an output of 9000 watt. The primary voltage is 1000 vot. The ratio of turns in the primary to the secondary coil is 5: 1. The iron losses at full ioad are 700 watt. The primary coil has a resistance of 1 ohm In the above, the current in the secondary coll is :

Knowledge Check

  • The overall efficiency of a transformer is 90% .The transformer is rated for an output of 9000 watt.The primary voltage is 1000 volt.The ratio of turns in the primary to the secondary coil is 5:1 .The iron losses at full load are 700 watt.The primary coil has a resistance of 1 ohm . In the above, the current in the primary coil is

    A
    `9` amp
    B
    `10` amp
    C
    `1` amp
    D
    `4.5` amp
  • The overall efficiency of a transformer is 90% .The transformer is rated for an output of 9000 watt.The primary voltage is 1000 volt.The ratio of turns in the primary to the secondary coil is 5:1 .The iron losses at full load are 700 watt.The primary coil has a resistance of 1 ohm . In the above, the copper loss in the primary coil is

    A
    `100` watt
    B
    `700` watt
    C
    `200` watt
    D
    `1000` watt
  • The overall efficiency of a transformer is 90% .The transformer is rated for an output of 9000 watt.The primary voltage is 1000 volt.The ratio of turns in the primary to the secondary coil is 5:1 .The iron losses at full load are 700 watt.The primary coil has a resistance of 1 ohm . In the above, the copper loss in the secondary coil is

    A
    `100` watt
    B
    `700` watt
    C
    `200` watt
    D
    `1000` watt
  • Similar Questions

    Explore conceptually related problems

    The overall efficiency of a transformer is 90%. The transformer is rated for an output of 9000 watt. The primary voltage is 1000 vot. The ratio of turns in the primary to the secondary coil is 5: 1. The iron losses at full ioad are 700 watt. The primary coil has a resistance of 1 ohm In the above, the resistance of the secondary coil is approximately

    The overall efficiency of a transformer is 90%. The transformer is rated for an output of 9000 watt. The primary voltage is 1000 vot. The ratio of turns in the primary to the secondary coil is 5: 1. The iron losses at full ioad are 700 watt. The primary coil has a resistance of 1 ohm The voltage in secondary coil is:

    The overall efficiency of a transformer is 90% .The transformer is rated for an output of 9000 watt.The primary voltage is 1000 volt.The ratio of turns in the primary to the secondary coil is 5:1 .The iron losses at full load are 700 watt.The primary coil has a resistance of 1 ohm . The voltage in secondary coil is:

    The efficiency of a transformer is 90%. The transformer is rated for output of 9000 W. If the primary voltage is 1000 V and resistance of primary is one ohm then the copper losses in the primary coil will be

    The secondary coil of an ideal step down transformer is delivering 500 watt power at 12.5 A current. If the ratio of turns in the primary to the secondary is 5 : 1 then the current flowing in the primary coil will be: