Home
Class 12
PHYSICS
The ratio of secondary and primary turns...

The ratio of secondary and primary turns of step-up transformer is 4 : 1.If a current of 4A is applied to the primary , the induced current in secondary will be

A

8A

B

2A

C

1A

D

0.5A

Text Solution

Verified by Experts

(c)`(I_(s))/(I_(p))=(N_(P))/(N_(s))=(1)/(4)impliesI_(s)=(1)/(4)xx4=1A`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ALTERNATING CURRENT AND EM WAVE

    BITSAT GUIDE|Exercise BITSAT Archives|15 Videos

  • ATOMIC STRUCTURE

    BITSAT GUIDE|Exercise BITSAT Archives|4 Videos

Similar Questions

Explore conceptually related problems

The number of turns in primary and secondary coils of a transformer is 50 and 200, respectively. If the current in the primary coil is 4 A, then current in the secondary coil is

The number of turns in primary and secondary coils of a transformer is 50 and 200 respectively. If the current in the primary coil is 4 A, then the current in the secondary coil is

Knowledge Check

  • The ratio of secondary of primary turns of step up transformer is 4 : 1. If a current of 4A is applied to the primary, the induced current in secondary will be

    A
    `8 A`
    B
    `2 A`
    C
    `1 A`
    D
    `0.5 A`

  • Turn ratio of a step-up transformer is 1 : 25. If current in load coil is 2A, then the current in primary coil will be :

    A
    25A
    B
    50A
    C
    0.25A
    D
    0.5A

  • the number of turns in primary and secondary coils of a transformer are 100 and 20 respectively. If an alternating potential of 200 volt is applied to the primary, the induced potential in secondary will be

    A
    `10V`
    B
    `40V`
    C
    `1000V`
    D
    `20,000V`

    • Similar Questions

    Explore conceptually related problems

    The number of turns in primary and secondary coils of a transformer is 50 and 200 respectively. If the current in the primary coil is 4 A, then the current in the secondary coil is

    The ratio of secondary to primary turns of an ideal transformer is 9:4. What will be the ratio of power output to power input for the given transformer?

    The number of turns in the primary coil of a transformer is 200 and the number of turns in the secondary coil is 1.0 if 240 volt AC is applied to the primary, the output from the secondary will be

    In a step-up transformer, in comparison with the secondary the primary coil has __

    A transformer of efficiency 90% has turns ratio 10 : 1. If the voltage across the primary is 220 V and current in the primary is 0.5 A, then the current in secondary is

    Home
    Profile