3. (From OpenStax University Physics, Vol 2) A circular arc of radius r shown below carries a linear charge density 1 = 1, cos 0, where 1, is a constant and 0 is measured from the +x axis. Let 0, = 30° а. Find the magnitude and direction of the electric field at the origin due to the arc in terms of r, and any other constants. (Hint: Make use of symmetry here!) b. )) Find the total charge Q of the arc in terms of 2, and r. Express the electric field in part a in terms of Q and any other constants (but not 1o)| yA 0o

3. (From OpenStax University Physics, Vol 2) A circular arc of radius r shown below carries a linear charge density 1 = 1, cos 0, where 1, is a constant and 0 is measured from the +x axis. Let 0, = 30° а. Find the magnitude and direction of the electric field at the origin due to the arc in terms of r, and any other constants. (Hint: Make use of symmetry here!) b. )) Find the total charge Q of the arc in terms of 2, and r. Express the electric field in part a in terms of Q and any other constants (but not 1o)| yA 0o

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter7: Electricity

Section: Chapter Questions

Problem 3P: A particle having a positive charge of C experiences an upward force of 8 N when placed at a certain...

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