Chapter 21 Problems, Se : c Secure https//www.wi bassagn.net/web/Student Assignm

Question

Chapter 21 Problems, Se : c Secure https//www.wi bassagn.net/web/Student Assignme nt Res. Q 0 The figure shows a partide that carries a charge of o-2.80 x 10 C. It is moving along the +y axis at a speed of v-5.1 x 10 m/s. A magnetic field B of magnitude 4.00 x 10- T is directed along the + axis, and an electric field P of magnitude 120 N/C points along the -x ais. 49 Concepts: (i) What forces make up the net force acting on the partide? the electric force only o both the electric and magnetic force the magnetic force only (i) How do you determine the direction of the magnetic force acting on the negative charge? Determine the direction which is perpendicular to B and V using Right-Hand Rule No. 1 (RHR-1). The magnetic force is in the same direction for negative charges, and in the opposite direction for positive charges. 1 (RHR-1).The magnetic force is in the same direction for positive charges, and in the opposite direction for negative 1058 AM ^10/10 2017 prt sc sysrg delete home paup padn

Explanation / Answer

(i)second option is correct

Both the electric and magnetic force

(ii)second option is correct

determine the direction which is perpendicluar to B and v using the right hand rule no 1 (RHR-1). The magnetic force is in the same direction for the positie charge and in the apposite direction for a negative charge.

iii)last option is correct

Locate the direction of the electric field. The electric force is in the same direction for a positive charge and in apposite direction for negative charge.

iv)last option is correct

Only the magnetic force is affected

Since the electric force is F(e) = q E but the magnetic force is Fm = q v B

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