#### Basics 0

6 Questions with standard solutions

- Lecture1.1

#### Electrostatics 2

28 Questions with standard solutions

- Lecture2.1
- Lecture2.2
- Lecture2.3

#### Magnetic Fields 1

9 Questions with standard solutions

- Lecture3.1

#### Uniform Plane Waves 5

65 Questions with standard solutions

- Lecture4.1
- Lecture4.2
- Lecture4.3
- Lecture4.4
- Lecture4.5
- Lecture4.6

#### Transmission Lines 6

56 Questions with standard solutions

- Lecture5.1
- Lecture5.2
- Lecture5.3
- Lecture5.4
- Lecture5.5
- Lecture5.6

#### Waveguides 4

35 Questions with standard solutions

- Lecture6.1
- Lecture6.2
- Lecture6.3
- Lecture6.4

#### Antennas 4

42 Questions with standard solutions

- Lecture7.1
- Lecture7.2
- Lecture7.3
- Lecture7.4

# Basics [Preview]

**Q. [1994 1M]**

Ans:-

Exp- Using Stoke’s theorem

**Q. If a vector field is related to another vector field through ,Which of the following is true? Note: C and S _{C} refer to any closed counter and any surface whose boundary is C. [2009 2M]**

a)

b)

c)

d)

**Ans-(b)**

Exp- Stoke’s theorem

**Q. Consider a closed surface S surrounding a volume V. If is the position vector of a point inside s, with the unit normal on S,the value of the integral [2011 1M]**

a) 3 V

b) 5 V

c) 10 V

d) 15 V

**Ans-(d)**

Exp- For close surface, we can use Divergence Theorem.

**Q. The direction of vector A is radially outward from the origin,with where and K is a constant. The value of n for which is [2012 2M]**

a) -2

b) 2

c) 1

d) 0

**Ans- (a)**

Exp-

For to be zero, derivative must be zero in other words (r^{n+2}) must be constant.

This could be possible only if n = -2.

**Q. A vector is given by **

**Which of the following statements is True? [2015 1M,set-2]**

a) is solenoidal,but not irrotational

b) is irrotational,but not solensoidal

c) is neither solenoidal nor irrotational

d) is both solenoidal and irrotational

**Ans-(a)**

Exp-

For solenoidal,

is solenoidal

For irrotational,

**Q. If the vector function**

**is irrotational,then the values of the constants respectively,are[2017 2M Set-2]**

a)

b)

c)

d)

**Ans-(b)**

Exp-