#### Problem Statement: Electromagnetics

**Electromagnetic/Vector Analysis Problem Solving**

Determine the value of a so that A = 2i + aj + k and B = 4i – 2j – 2k are orthogonal.

A. 2

B. 0.5

C. 3

D. 1

#### Problem Answer:

The value of a so that A and B are orthogonal is equal to **3**.

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