Home
Class 12
PHYSICS
The ratio of secondry to the primary tur...

The ratio of secondry to the primary turns in a trans is `9:4`. If the power input be `P`, what will be the ratio of power output (neglect all losses) to power input

A

`4:9`

B

`9:4`

C

`5:4`

D

`1:1`

Text Solution

Verified by Experts

The correct Answer is:
D
Since all the losses are neglected.
so`P_(out)=P_("in")`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    A2Z|Exercise Problems On Mixed Concepts|37 Videos

  • ELECTROMAGNETIC INDUCTION

    A2Z|Exercise Section B - Assertion Reasoning|31 Videos

  • ELECTROMAGNETIC INDUCTION

    A2Z|Exercise Inductor Circuits|31 Videos

  • ELECTRIC POTENTIAL & CAPACITANCE

    A2Z|Exercise Section D - Chapter End Test|29 Videos

  • ELECTROMAGNETIC WAVES AND COMMUNICATION SYSTEM

    A2Z|Exercise Section D - Chapter End Test|30 Videos

Similar Questions

Explore conceptually related problems

The ratio of number of turns in the primary to secondary coil of a transformer is 3.2 and the total number of turns in both the coils put together is 300. The output voltage is 200 V. Find the number of turns in each coil and the input voltage.

(a) Draw a labelled diagram of a stepup transformer. Obtain the ratio of secondary to primary voltage in terms of number of turns and currents in the two coils. (b) 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.

Knowledge Check

  • The ratio of secondary to the primary turns in a transformer is 3:2. If the power output be P, then the input power neglecting all loses must be equal to.

    A
    `5P`
    B
    `1.5 P`
    C
    `P`
    D
    `2//5P`

  • The ratio of secondary to the primary turns in a transformer is 3:2. If the power output be P, then the input power, neglecting all losses, must be equal to

    A
    `5 P`
    B
    `1.5 P`
    C
    `(2)/(5)P`
    D
    P

  • The ratio of secondary to the primary turns in a transformer is 3:2 . If the power output be P , then the input power neglecting all loses must be equal to

    A
    `5P`
    B
    `1.5P`
    C
    `P`
    D
    `(2)/(5)P`

    • Similar Questions

    Explore conceptually related problems

    (a) Draw a labelled diagram of a step-up transformer. Obtain the ratio of secondary to primary voltage in terms of number of turns and currents in the two coils. (b) 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 .

    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 ratio of secondary to primary turns is 4:5. if power input is P, then the ratio of power output to power input is

    The ratio of tru epower to apparent power, is

    For an ideal transformer ratio of output ot the input power is always

    Home
    Profile