Question
A region formed by 2mm<r<3mm, 0<0<90', 0<o<90° defines the potential
field(V) by cos8
300
°, find the energy stored in free space.
Take help of these expressions:
5, 3cos20,
4cos²0 + sin²0 = E+
2
sin30 – sin®
Sin@cos20
7sine 3sin36
5Sin® + 3cos20sin®
2
2
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Transcribed Image Text

A region formed by 2mm<r<3mm, 0<0<90', 0<o<90° defines the potential field(V) by cos8 300 °, find the energy stored in free space. Take help of these expressions: 5, 3cos20, 4cos²0 + sin²0 = E+ 2 sin30 – sin® Sin@cos20 7sine 3sin36 5Sin® + 3cos20sin® 2 2