Home
Class 10
PHYSICS
An electric kettle is rated at 230 V, 10...

An electric kettle is rated at `230 V, 1000 W`. What is the resistance of its element ? What maximum current can pass through its element ?

Text Solution

Verified by Experts

The correct Answer is:
`52.9 Omega, 4.35 A`
As `P = (V^2)/( R), R = (V^2)/(P) = ((230 V)^2)/(1000 W) = 52.9 Omega`
Further, `I = (V)/( R) = (230 V)/(52.9 Omega) = 4.35 A`.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ELECTRICITY

    PRADEEP|Exercise (Exemplar)Multiple Choice|18 Videos

  • ELECTRICITY

    PRADEEP|Exercise (Mock Test)Sec -A|21 Videos

  • ELECTRICITY

    PRADEEP|Exercise Value Based Question|4 Videos

  • MAGNETIC EFFECTS OF ELECTRIC CURRENT

    PRADEEP|Exercise Mock Test|21 Videos

Similar Questions

Explore conceptually related problems

An electric bulb is rated at 200 V, 100 W . What is its resistance ?

An electric bulb is rated at 220V, 100W. What is its resistance?

Knowledge Check

  • An electric bulb is rated 60 W , 220 V . The resistance of its filament is

    A
    `708 Omega`
    B
    `870 Omega`
    C
    `807 Omega`
    D
    `780 Omega`

  • The electricity bulb is of 200 V and 60 W. Its electrical resistance is about

    A
    `8070 Omega`
    B
    `666.7 Omega`
    C
    `708 Omega`
    D
    `4 Omega`

  • A galvanometer of resistance 90 Omega is shunted by a resistance of 10 Omega . What fraction of main current passes through the shunt ?

    A
    `1//10`
    B
    9/100
    C
    1/100
    D
    `9//10`

    • Similar Questions

    Explore conceptually related problems

    An electric iron is rated as 220 V-850W. What is the resistance of its heating element ? How much current will it draw when the rated voltage is applied on it ?

    An electric bulb is rated as 220 V-55 W. find the value of its resistance.

    An electric bulb is rated at 200 V-100 W . What is its resistance ? Five such bulbs burn for four hours. What is the electrical energy consumed ? Calculate the cost if the rate is 50 paise per unit.

    Arrange six identical cells of emf 2 V and internal resistance 0.5 Omega such that maximum current is passed through the external resistance of (i) 0.001 Omega and (ii) 250 Omega . What will be the value of current in each case ?

    Current passing through 3 Omega resistance is

    Home
    Profile