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A particular hydrogen atom is in an energy state with E = –2.418×10-19 J. Calculate the maximum angular momentum this atom could have.
Give the value as a multiple of ℏ to 2 decimal places. (e.g. if you calculated L = 1.41ℏ, then you would enter "1.41" as your value).
Calculate the electric force between charges of 2.5 nC and 6 x 10^8C if they are 8.0 cm apart.
An electromagnetic wave is generated by
A wire loop is hung from a pendulum and it swings through a
magnetic field as shown from a to d.
a) As the pendulum swings from a to b, the right hand side of the loop
enters the field. Use the right hand rule to determine the direction of
the induced current.
b) As the pendulum swings from c to d, the right hand side has left the
field and the left side is still moving through the field. Use the right
hand rule to determine the direction of the induced current.
c) While the pendulum swings from b to c, the entire loop is in the field and both the right
side of the loop and the left side of the loop are moving through the field. Use the right
hand rule to justify the lack of induced current.
A wire of length 150cm carrying an electric current of 0.1A in the negative x direction and perpendicular to a magnetic field B, experiences a force of 6.0 * 10^-3 N in the positive y direction due to a magnetic field. Find:
A. The magnitude of the magnetic field.
B. Direction of the magnetic field.
the pitch of a flute when played while holes are opened one by one becomes different from the pitch when all holes are closed. why?
A Practical Matter A power line carries a current of 350 A. What is the magnetic field in a house located 95 m away from the power line?
A practical matter power line carries a current of 500 A. What is the magnetic field in a house located 100m away from the power line
A current is 1.5 ampere in a 800 turns coil produce 1.5 x 18–⁵ Weber magnetised flux in each turn. Find out the self induction of coil
Two conductors are made of the same material and have the same length. Conductor A is a
solid wire of diameter 1.0 mm. Conductor B is a hollow tube of outside diameter 2.0 mm
and inside diameter 1.0 mm. What is the resistance ratio RA/RB, measured between their
ends?
