A Particle with a Charge of 5 *10^-6 C and a Mass

question 31

Multiple Choice

A particle with a charge of 5 *10^-6 C and a mass of 20 g moves uniformly with a speed of 7 m/s in a circular orbit around a stationary particle with a charge of -5 * 10^-6 C.The radius of the orbit is:

• A)0 m
• B)0.23 m
• C)0.62 m
• D)1.6 m
• E)4.4 m