大学MOOC Engineering Electromagnetics(Beijing Jiaotong University)1461338168 最新慕课完整章节测试答案
Ch 1 Fields
1.1 Quiz (Gradient of a Scalar Field)
1、单选题:
About gradient, which one is right?
选项:
A: Gradient of a scalar field is a scalar.
B: The magnitude of a gradient is the maximum change rate of the scalar function.
C: The direction of a gradient is the direction of the directional derivative.
D: The gradient of a constant is not certain.
答案: 【 The magnitude of a gradient is the maximum change rate of the scalar function.】点我阅读全文
