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Worksheets

emfs

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

Biot Savart law in magnetic field is analogous to which law in electric field?

a)

Gauss law

b)

Faraday law

c)

Coulomb’s law

d)

Ampere law

2.

Which of the following cannot be computed using the Biot Savart law?

a)

Magnetic field intensity

b)

Magnetic flux density

c)

Electric field intensity

d)

Permeability

3.

Find the magnetic field of a finite current element with 2A current and height 1/2π is

a)

1

b)

2

c)

1/2

d)

1/4

4.

Calculate the magnetic field at a point on the centre of the circular conductor of radius 2m with current 8A.

a)

1

b)

2

c)

3

d)

4

5.

The current element of the solenoid of turns 100, length 2m and current 0.5A is given by,

a)

100 dx

b)

200 dx

c)

25 dx

d)

50 dx

6.

Find the magnetic field intensity at the centre O of a square of the sides equal to 5m and carrying 10A of current.

a)

1.8

b)

1.2

c)

1

d)

1.6

7.

Find the magnetic flux density when a point from a finite current length element of current 0.5A and radius 100nm.

a)

0

b)

0.5

c)

1

d)

2

8.

In a static magnetic field only magnetic dipoles exist. State True/False.

a)

True

b)

False.

9.

The magnetic field intensity will be zero inside a conductor. State true/false

a)

True

b)

.False

10.

Find the magnetic field when a circular conductor of very high radius is subjected to a current of 12A and the point P is at the centre of the conductor.

a)

1

b)

∞

c)

0

d)

-∞

11.

Biot Savart law in magnetic field is analogous to which law in electric field?

a)

Gauss law

b)

Faraday law

c)

Coulomb’s law

d)

Ampere law

12.

Which of the following cannot be computed using the Biot Savart law?

a)

Magnetic field intensity

b)

Magnetic flux density

c)

Electric field intensity

d)

Permeability

13.

Find the magnetic field of a finite current element with 2A current and height 1/2π is

a)

1

b)

2

c)

1/2

d)

1/4

14.

Calculate the magnetic field at a point on the centre of the circular conductor of radius 2m with current 8A.

a)

1

b)

2

c)

3

d)

4

15.

The current element of the solenoid of turns 100, length 2m and current 0.5A is given by,

a)

100 dx

b)

200 dx

c)

25 dx

d)

50 dx

16.

Find the magnetic field intensity at the centre O of a square of the sides equal to 5m and carrying 10A of current.

a)

1.8

b)

1.2

c)

1

d)

1.6

17.

Find the magnetic flux density when a point from a finite current length element of current 0.5A and radius 100nm.

a)

0

b)

0.5

c)

1

d)

2

18.

In a static magnetic field only magnetic dipoles exist. State True/False.

a)

True

b)

False.

19.

The magnetic field intensity will be zero inside a conductor. State true/false

a)

True

b)

.False

20.

Find the magnetic field when a circular conductor of very high radius is subjected to a current of 12A and the point P is at the centre of the conductor.

a)

1

b)

∞

c)

0

d)

-∞