TG EAMCET (EAPCET) Physics Multiple Choice Questions (MCQs)
TG EAMCET Physics MCQs (101 to 110)
101. Which of the following best describes a bar magnet?
- a) A magnet with a single magnetic pole
- b) A magnet that does not have a magnetic field
- c) A magnet with two poles: North and South
- d) A magnet with uniform magnetic field
Answer: c) A magnet with two poles: North and South
102. The magnetic field lines of a bar magnet resemble:
- a) Electric field lines
- b) Lines of force around an electric dipole
- c) The field due to a point charge
- d) The field due to a monopole
Answer: b) Lines of force around an electric dipole
103. The Earth's magnetic field causes:
- a) Magnetic declination
- b) Magnetic flux
- c) Magnetic moment
- d) All of the above
Answer: a) Magnetic declination
104. In which material does magnetization occur due to the alignment of atomic magnetic dipoles?
- a) Diamagnetic materials
- b) Paramagnetic materials
- c) Ferromagnetic materials
- d) Non-magnetic materials
Answer: c) Ferromagnetic materials
105. Which of the following is a characteristic of paramagnetic materials?
- a) They are repelled by magnetic fields
- b) They are attracted to magnetic fields and have a small positive susceptibility
- c) They are strongly attracted to magnetic fields
- d) They do not exhibit magnetic properties
Answer: b) They are attracted to magnetic fields and have a small positive susceptibility
106. The magnetization of a material is directly proportional to:
- a) The magnetic field intensity
- b) The temperature of the material
- c) The size of the material
- d) The electric field applied
Answer: a) The magnetic field intensity
107. Faraday's law of induction states that:
- a) The induced emf is proportional to the rate of change of magnetic flux
- b) The induced emf is inversely proportional to the rate of change of magnetic flux
- c) The magnetic flux is inversely proportional to the induced emf
- d) The magnetic flux remains constant in a closed loop
Answer: a) The induced emf is proportional to the rate of change of magnetic flux
108. Lenz’s law states that:
- a) The induced emf will oppose the change in the magnetic flux that produced it
- b) The induced emf will enhance the change in magnetic flux
- c) The induced current is always in the same direction as the changing magnetic flux
- d) The induced current will be zero
Answer: a) The induced emf will oppose the change in the magnetic flux that produced it
109. In a transformer, mutual inductance is defined as the ratio of:
- a) Magnetic flux through primary coil to current in secondary coil
- b) Voltage induced in the secondary coil to the rate of change of current in the primary coil
- c) Magnetic flux through secondary coil to current in the secondary coil
- d) Voltage induced in the primary coil to the rate of change of current in the secondary coil
Answer: b) Voltage induced in the secondary coil to the rate of change of current in the primary coil
110. The energy stored in an inductor is given by:
- a) 1/2 L I²
- b) 1/2 L² I
- c) L I
- d) L² I²
Answer: a) 1/2 L I²
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