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An electric field is given by ) k ˆ 3 j ˆ 5 i ˆ 6 ( + + N/C. The electric flux through a surface area 2 m i ˆ 30 lying in YZ- plane (in SI unit) is :

1. 180
2. 60
3. 150
4. 90

Correct answer: 180

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