Question

An electron (mass = 9 × 10⁻³¹ kg, charge = 1.6 × 10⁻¹⁹ C)
moving with a velocity of 10⁶ m/s enters a magnetic field. If it
describes a circle of radius 0.1m, then strength of magnetic
field must be
(a) 4.5 × 10⁻⁵ T (b) 1.4 × 10⁻⁵ T
(c) 5.5 × 10⁻⁵ T (d) 2.6 × 10⁻⁵ T

Answer 1

Answer:

a

Explanation:

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Answer 2

Answer:

I'm completely sure (A) is correct answer

Explanation:

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