Question

MP3. Consider a dc circuit consisting of a battery of emf E = 9.0 V and two resistors R = 5.0 22 and R' = 15.0 22 as shown in the figure below. The magnitude of the current I1 flowing through point 1 is, 9.0 V 5.0 22 >I, Z 15.02 Soi A) 1.2 A B) 2.4 A C) 4.8 A D) 9.6 A E) 12.6 A MP4. An electron and a proton enter a region above the x-axis of constant magnetic field B = 0.01 T with velocity v = 5x10 m/s as shown in the figure and move on circular orbits. The radius Re of the electron orbit would be, orbit 1 orbit 2 A) 1.24 x 10 m B) 3.86 x 10-4 m C) 2. 84 x 10-3 m D) 4.51 x 102 m X-axis E) 5.94 x 102 m

Answer 1

{ 152 3.752 13 Renet 1545. 3.752 The ț 375 249 magnitude of 1,- 2.4A (6) is correct. Radius in magnetic field. R. mv mu? qvB = Ri mu Re: 9.1 x 108 x 5X106 . 25.5x1025 = 28.43 X 100 m | J-6 X 16/3, 0-0 3-4 X 10 = 2.84x108m cc is correct