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How many electrons pass through a bulb i...

How many electrons pass through a bulb in 1 min, if the current is 400 mA `(e=1.6xx10^(-19)C)`?

A

`15 xx 10^-19`

B

`15 xx 10^19`

C

`1.5 xx 10^19`

D

`1.5 xx 10^-19`

Text Solution

Verified by Experts

The correct Answer is:
B
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Knowledge Check

  • 160W-60V lamp is connected at 60 V DC supply. The number of electrons passing through the lamp in 1 min is (The charge of electron, e=1.6xx10^(-19)C )

    A
    `10^(19)`
    B
    `10^(21)`
    C
    `1.6xx10^(19)`
    D
    `1.4xx10^(20)`

  • A conductor carries a current of 0.2 A . Find the amount of charge that will pass through the cross-section of the conductor in 30 s . How many electrons will flow in this time interval if the charge on one electron is 1.6 xx 10^-19 C ?

    A
    `1.5 xx 10^19`
    B
    `3.9 xx10^19`
    C
    `6.75 xx 10^19`
    D
    `3.75 xx 10^19`

  • A current of 1 mA is flowing through a copper wire. How many electrons will pass a given point in one second [e = 1.6 xx 10^(19) Coulomb]

    A
    `6.25 xx 10^(19)`
    B
    `6.25 xx 10^(15)`
    C
    `6.25 xx 10^(31)`
    D
    `6.25 xx10^(8)`
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