Physics (Magnetism)

1 / 30

1) Which of the following materials can be magnetized to become a temporary magnet?

A) Aluminum

B) Copper

C) Iron

D) Silver

2 / 30

2) What is the SI unit of magnetic susceptibility?

A) Henry

B) Ampere

C) Tesla

D) Dimensionless

3 / 30

3) What is the formula to calculate the magnetic force between two current-carrying wires?

A) F = ma

B) F = qvB

C) F = mg

D) F = μ0I1I2/(2πr)

4 / 30

4) Which of the following statements is true about the magnetic field around a bar magnet?

A) The field is strongest at the poles

B) The field is weakest at the poles

C) The field is zero at the poles

D) The field is uniform throughout the magnet

5 / 30

5) What is the relationship between the magnetic field strength and the distance from a wire carrying an electric current?

A) Inverse

B) Direct

C) No relationship

D) Exponential

6 / 30

6) Which of the following statements is true about the magnetic field inside a current-carrying solenoid?

A) The field is stronger at the center of the solenoid

B) The field is weaker at the center of the solenoid

C) The field is zero at the center of the solenoid

D) The field is uniform throughout the solenoid

7 / 30

7) Which of the following materials is not a magnetic material?

A) Iron

B) Copper

C) Nickel

D) Cobalt

8 / 30

8) What is the relationship between the magnetic field strength and the current in a solenoid?

A) Inverse

B) Direct

C) No relationship

D) Exponential

9 / 30

9) Which of the following statements is true about the magnetic field around a current-carrying coil?

A) The field is strongest at the center of the coil

B) The field is weakest at the center of the coil

C) The field is zero at the center of the coil

D) The field is uniform throughout the coil

10 / 30

10) What is the SI unit of magnetic dipole moment?

A) Ampere

B) Coulomb

C) Tesla

D) Ampere-meter^2

11 / 30

11) What is the formula to calculate the magnetic field strength inside a solenoid?

A) B = μ0I/2πr

B) B = μ0I/4πr

C) B = μ0nI

D) B = μ0nI/2πr

12 / 30

12) Which of the following statements is true about the magnetic field inside a solenoid?

A) It is strongest at the ends of the solenoid

B) It is weakest at the ends of the solenoid

C) It is zero at the ends of the solenoid

D) It is uniform throughout the solenoid

13 / 30

13) What is the relationship between the magnetic field strength and the current in a wire?

A) Inverse

B) Direct

C) No relationship

D) Exponential

14 / 30

14) Which of the following statements is true about the magnetic field inside a current-carrying conductor?

A) The field is stronger at the center of the conductor

B) The field is weaker at the center of the conductor

C) The field is zero at the center of the conductor

D) The field is uniform throughout the conductor

15 / 30

15) What is the SI unit of magnetic flux?

A) Henry

B) Ampere

C) Tesla

D) Weber

16 / 30

16) What is the relationship between the magnetic field strength and the number of turns in a coil of wire?

A) Inverse

B) Direct

C) No relationship

D) Exponential

17 / 30

17) Which of the following statements is true about the magnetic field around a current-carrying loop?

A) The field is strongest at the center of the loop

B) The field is weakest at the center of the loop

C) The field is zero at the center of the loop

D) The field is uniform throughout the loop

18 / 30

18) Which of the following statements is true about the magnetic field inside a bar magnet?

A) It is weaker at the poles

B) It is stronger at the poles

C) It is zero at the poles

D) It is uniform throughout the magnet

19 / 30

19) Which of the following properties of a material determines its magnetic permeability?

A) Mass

B) Volume

C) Density

D) Composition

20 / 30

20) What is the shape of the magnetic field around a straight current-carrying wire?

A) Spherical

B) Cylindrical

C) Conical

D) Straight

21 / 30

21) Which of the following statements is true about the magnetic force on a current-carrying wire in a magnetic field?

A) The force is always zero

B) The force is always attractive

C) The force is always repulsive

D) The force depends on the direction of the current and the magnetic field

22 / 30

22) Which of the following is a ferromagnetic material?

A) Aluminum

B) Copper

C) Silver

D) Iron

23 / 30

23) What is the relationship between the magnetic field strength and the distance from a current-carrying wire?

A) Inverse

B) Direct

C) No relationship

D) Exponential

24 / 30

24) What is the SI unit of magnetomotive force?

A) Henry

B) Ampere

C) Tesla

D) Weber

25 / 30

25) What is the formula to calculate the magnetic force experienced by a charged particle moving in a magnetic field?

A) F = ma

B) F = qvB

C) F = mg

D) F = qEB

26 / 30

26) Which of the following materials is used to make permanent magnets?

A) Copper

B) Aluminum

C) Iron

D) Silver

27 / 30

27) Which of the following statements is true about magnetic poles?

A) Like poles attract each other

B) Unlike poles repel each other

C) Magnetic monopoles exist

D) Magnetic poles do not have forces between them

28 / 30

28) What is the direction of the magnetic field inside a solenoid?

A) Clockwise

B) Anti-clockwise

C) Radial

D) Parallel

29 / 30

29) Which of the following materials is not attracted to a magnet?

A) Iron

B) Copper

C) Nickel

D) Cobalt

30 / 30

30) What is the SI unit of magnetic field strength?

A) Hertz

B) Ampere

C) Tesla

D) Ohm

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Physics (Magnetism)