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If the electron in a Hydrogen atom makes...

If the electron in a Hydrogen atom makes `6.25xx10^(15)` revolutions in one second, the current is

A

`1.12mA`

B

`1mA`

C

`1.25mA`

D

`1.5mA`

Text Solution

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The correct Answer is:
To find the current generated by an electron in a hydrogen atom making \(6.25 \times 10^{15}\) revolutions per second, we can follow these steps: ### Step 1: Understand the relationship between current, charge, and time The current \(I\) is defined as the rate of flow of charge. Mathematically, it can be expressed as: \[ I = \frac{Q}{t} \] where \(Q\) is the charge and \(t\) is the time. ### Step 2: Relate charge to frequency In this case, the electron makes \(6.25 \times 10^{15}\) revolutions per second, which can be considered as the frequency \(f\) of the electron's motion: \[ f = 6.25 \times 10^{15} \text{ Hz} \] The total charge \(Q\) that passes through a point in one complete cycle (one revolution) is equal to the charge of one electron, which is approximately: \[ Q = 1.6 \times 10^{-19} \text{ C} \] ### Step 3: Calculate the current Since the electron completes \(6.25 \times 10^{15}\) revolutions in one second, the current can be calculated by multiplying the charge of the electron by the frequency: \[ I = Q \times f \] Substituting the values: \[ I = (1.6 \times 10^{-19} \text{ C}) \times (6.25 \times 10^{15} \text{ Hz}) \] ### Step 4: Perform the multiplication Now, we can calculate: \[ I = 1.6 \times 6.25 \times 10^{-19} \times 10^{15} \] Calculating \(1.6 \times 6.25\): \[ 1.6 \times 6.25 = 10.0 \] Thus: \[ I = 10.0 \times 10^{-4} \text{ A} \] This can be expressed in milliamperes (mA): \[ I = 1.0 \text{ mA} \] ### Conclusion The current flowing due to the electron in the hydrogen atom is: \[ \boxed{1.0 \text{ mA}} \]

To find the current generated by an electron in a hydrogen atom making \(6.25 \times 10^{15}\) revolutions per second, we can follow these steps: ### Step 1: Understand the relationship between current, charge, and time The current \(I\) is defined as the rate of flow of charge. Mathematically, it can be expressed as: \[ I = \frac{Q}{t} \] where \(Q\) is the charge and \(t\) is the time. ...
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Knowledge Check

  • In the electron in a Hydrogen atom makes 6.25 xx 10^(15) revolutions in one second, the current is

    A
    1.12 mA
    B
    1 mA
    C
    1.25 mA
    D
    1.5 mA
  • In hydrogen atom, the electron makes 6.6 xx 10^(15) revolutions per second around the nucleus in an orbit of radius 0.5 xx 10^(-10)m . It is equivalent to a current nearly

    A
    `1A`
    B
    `1mA`
    C
    `1 muA`
    D
    `1.6 xx 10^(-19)A`
  • According to Bohr's theory, the ratio of the times taken by the electron in a hydrogen atom to complete one revolution in orbits corresponding to ground and first excited states is

    A
    `1:4`
    B
    `4:1`
    C
    `1:8`
    D
    `8:1`
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