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Two bulbs are having the ratings as 60 W...

Two bulbs are having the ratings as 60 W, 220 V and 40 W, 220 V respectively. Which one has a greater resistance?

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Knowledge Check

  • If there are two bulbs i.e., 150W bulb and 60W bulb so which has more resistance ?

    A
    60W
    B
    150W
    C
    both a and b
    D
    None of above

  • The resistance of the filament of a 110 W, 220 V electric bulb is ,

    A
    `440 Omega`
    B
    `220 Omega`
    C
    `484 Omega`
    D
    `848 Omega`

  • A 110 W, 220 V bulb draws a current

    A
    `2 A`
    B
    ` 440 A`
    C
    `0.5` A
    D
    `5.5` A

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    Two electric bulbs marked 20 W- 220 V and 100 W - 220 V are connected in series to 440 V supply. Which bulb will be fused?

    Two electric bulbs marked 40 W, 220 V and 60 W, 220 V when connected in series, across same voltage supply of 220 V, the effective power is P_(1) , and when connected in parallel, the effective power is p_(2) Then (p_(1))/(p_(2)) is

    A battery of voltage V is connected to 30V bulb and 60 W bulb as shown in the figure. (a) Identify brightest bulb (b) which bulb has greater resistance? (c ) Suppose the two bulbs are connected in series, which bulb will glow brighter?

    Out of 100W and 40W bulbs, which has high electrical resistance when it use.

    Two wires of same material and length have resistances 5 Omega and 10 Omega respectively. Find the ratio of radii of the two wires.

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