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1. Homework Statement

1. Homework Statement

Mastering Physics (3rd edition) Problem 26.40

The figure (Figure 1) shows a thin rod of length L with total charge Q.

Part A) Find an expression for the electric field strength on the axis of the rod at distance r from the center.

Part B) Verify that your expression has the expected behavior if r≫L.

Express your answer in terms of variables Q, rand constants π, ε0.

Part C) Evaluate E at r = 3.6cm if L = 5.0 cm and 2.2nC .

Express your answer to two significant figures and include the appropriate units.

**3. The solution**

Part A)

Part B)

Part C)