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PHY 102 Test Compilation PHY 102 27 Objective Question

Question

An electron is travelling at right angles to a uniform magnetic field of flux density 1.2 mT with a speed of 8x106 m/s. The radius of the circular path followed by the electron is
Options
A 3.8 cm
Correct Answer
B 3.7 cm
C 3.6 cm
D 3.5 cm
Correct Answer

Option A is the correct answer.

Detailed Explanation

r=mv/(eB)=(9.11e-31)(8e6)/[(1.6e-19)(1.2e-3)]=3.8cm.

Hint

r=mv/(eB)=(9.11e-31)(8e6)/[(1.6e-19)(1.2e-3)]=3.8cm.

Question Info