A 22-G Metal Ball Hangs from a String

question 55

Multiple Choice

A 22-g metal ball hangs from a string.An electric field of 15,000 N/C,pointing to the right,is then turned on.After the electric field is turned on,the ball hangs at a 25 degree angle away from the vertical.What is the charge on the ball?

• A)6.8 * 10^-7 C
• B)6.7 * 10^-6 C
• C)6.1 * 10^-6 C
• D)1.4 * 10^-5 C
• E)3.1 *10^-5 C