In hydrogen atom, an electron is revolving in the orbit of radius 0.53 Å with 6.6 x 1015 rotations/second. Magnetic field produced at the centre of the orbit is (b) 1.25 Wb/m² (d) 125 Wb/m² (a) 0.125 Wb/m² (c) 12.5 Wb/m²

Problem 5: An electron (q= -e = -1.60 × 10-19 C and me = 9.11 × 10-31 kg) in a cathode-ray tube is accelerated through a potential difference of 10 kV. Thus, the electron leaves the cathode-ray tube with a speed v = 5.93 × 107 m/sec. The electron then passes through the 2.0 cm wide region of uniform magnetic field (shown in the Figure above on the right). What field strength will deflect the electron by 10°? Answer: B = 0.0029 T. OV 10 kV 2.0 cm 10°

An oxygen nucleus (8 protons, 8 neutrons) moves at a velocity of 6.55 x 10^6 m/s in a direction perpendicular to a uniform magnetic field. The oxygen nucleus is observed to move in a circular path of radius 3.45 cm. What is the strength of the magnetic field?       5.54 B     3.96 B     1.58 B     3.56 B

An electron moves in a circular path perpendicular to a constant magnetic field with a magnitude of 4.00 mT. The angular momentum of the electron about the center of the circle is 6.00 x 10-25 1.s. (a) Determine the radius of the circular path. cm (b) Determine the speed of the electron. m/s

When a proton has a velocity of (2i+8j)*10^6 m/s , it experiences a force of -1.6*10^-13k N. . In a second experiment with the same B field, the particle is moving along the + z-axis and under these new conditions it experiences a force along the + x-axis . What is the magnetic field? answer should be in (i,j,k)

An electron moves with velocity v =(5.0i−5.0j) ×104 m/s  in a magnetic field B = (−0.73i+0.70j) T.  Determine the z-component of the force on the electron. Express your answer using two significant figures.

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