Acharge of 8.4 × 10–4 c moves at an angle of 35° to a magnetic field that has a field strength of 6.7 × 10–3 t. if the magnetic force is 3.5 × 10–2 n, how fast is the charge moving? 9.1 × 10–5 m/s 1.3 × 10–4 m/s 7.6 × 103 m/s 1.1 × 104 m/s

Velocity,

Explanation:

It is given that,

Magnitude of charge,

Magnetic field,    

Magnetic force,    

The mathematical formula for magnetic force is given by :

v = 10842.3 m/s

or

So, the charge is moving with a speed of . Hence, the correct option is (d).                                                                              

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