(11%) Problem 4: A 4.8 g charged insulating ball hangs on a 1.2 cm long string i

Question

(11%) Problem 4: A 4.8 g charged insulating ball hangs on a 1.2 cm long string in a uniform horizontal electric field as shown in the figure ©theexpertta.com > Given the charge on the ball is 35 C , find the strength of the field in NC. Grade Summary Deductions Potential 4% 96% sinO cotan)a cos() asinO atan) acotan)sinh) coshO tanh0 cotanh0 Submissions Attempts remaining: 19 (4% per attempt) detailed view acos) 4% END Degrees Radians DELCLEAR Submit Hint Feedback I give up! Hints: deduction per hint. Hints remaining: Feedback: 0% deduction per feedback -

Explanation / Answer

Given :-

m = 4.8 x 10^-3 kg

q = 35 x 10^-6 C

= 8 degree

g = 9.81 m/s^2

E = ??

tan = electric force / force due to gravity

tan = (qE)/(mg)

tan8° = [35 x 10^-6 C x E] / [(4.8 x 10^-3 kg x 9.81 m/s^2)]

E = 189 N/C

Related Questions

Navigate

• Browse (All)
• Browse #
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.