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Papessa [141]
3 years ago
13

Hydrogen atoms are placed in an external magnetic field. The protons can make transitions between states in which the nuclear sp

in component is parallel and antiparallel to the field by absorbing or emitting energy.What magnetic-field magnitude is required for this transition to be induced by photons with frequency 23.1 MHz?

Physics
1 answer:
gregori [183]3 years ago
6 0

Answer:

Magnetic field = 0.534 T

Explanation:

The solving is on the attach document.

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Answer:

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Explanation:

It is given that,

Diameter of rod, d = 2.56 cm

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Length of rod, l = 20 cm = 0.2 m

Voltage, V=1\times 10^3\ V

The resistivity of the rod is given by :

R=\rho\dfrac{L}{A}

R=2300\ \Omega-m\dfrac{0.2\ m}{\pi (0.0128\ m)^2}

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Current flowing in the rod is calculated using Ohm's law as :

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I = 0.0011 A

So, the current flowing in the rod is 0.0011 A. Hence, this is the required solution.

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