# Important Questions for HSC Science (Electronics) 12th Board Exam - Maharashtra State Board - Physics

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State Ampere’s circuital law

Appears in 8 question papers
Chapter: [0.14] Magnetic Effects of Electric Current
Concept: Ampere’s Circuital Law

Derive the mathematical expression for law of radioactive decay for a sample of a radioactive nucleus

Appears in 6 question papers
Chapter: [0.15] Structure of Atoms and Nuclei

Derive the mathematical expression for law of radioactive decay for a sample of a radioactive nucleus

Appears in 6 question papers
Chapter: [0.18] Atoms, Molecules and Nuclei

Describe, with the help of a circuit diagram, the working of Zener diode as a voltage regulator.

Appears in 5 question papers
Chapter: [0.19] Semiconductors
Concept: Zener Diode as a Voltage Regulator

Obtain the expression for current sensitivity of moving coil galvanometer.

Appears in 4 question papers
Chapter: [0.14] Magnetic Effects of Electric Current
Concept: Moving Coil Galvanometer

Write the functions of the following in communication systems:

Transmitter

Appears in 4 question papers
Chapter: [0.2] Communication Systems
Concept: Basic Terminology Used in Electronic Communication Systems

Write the functions of the following in communication systems:

Appears in 4 question papers
Chapter: [0.2] Communication Systems
Concept: Basic Terminology Used in Electronic Communication Systems

Draw a diagram showing all components of forces acting on a vehicle moving on a curved banked road.

Appears in 3 question papers
Chapter: [0.01] Circular Motion

Derive Laplace’s law for spherical membrane of bubble due to surface tension.

Appears in 3 question papers
Chapter: [0.02] Mechanical Properties of Fluids
Concept: Surface Tension

State the theorem of parallel axes about moment of inertia.

Appears in 3 question papers
Chapter: [0.03] Angular Momentum
Concept: Physical Significance of M.I (Moment of Inertia)

Derive Laplace’s law for spherical membrane of bubble due to surface tension.

Appears in 3 question papers
Chapter: [0.06] Surface Tension
Concept: Surface Tension

State the principle on  which transformer works.

Appears in 3 question papers
Chapter: [0.12] Electromagnetic Induction
Concept: Transformers

Explain transformer working with construction.

Appears in 3 question papers
Chapter: [0.12] Electromagnetic Induction
Concept: Transformers

State the principle on  which transformer works.

Appears in 3 question papers
Chapter: [0.16] Electromagnetic Inductions
Concept: Transformers

Explain transformer working with construction.

Appears in 3 question papers
Chapter: [0.16] Electromagnetic Inductions
Concept: Transformers

Write the functions of three segments of a transistor.

Appears in 3 question papers
Chapter: [0.19] Semiconductors
Concept: Junction Transistor > Transistor as an Amplifier (Ce-configuration)

Draw a block diagram of generalized communication system.

Appears in 3 question papers
Chapter: [0.2] Communication Systems
Concept: Elements of a Communication System

State and prove : Law of conservation of angular momentum.

Appears in 2 question papers
Chapter: [0.01] Rotational Dynamics
Concept: Angular Momentum or Moment of Linear Momentum

Prove the theorem of parallel axes about moment of inertia

Appears in 2 question papers
Chapter: [0.01] Rotational Dynamics
Concept: Theorems of Perpendicular and Parallel Axes

Write the necessary equation for maximum safety, speed and state the significance of each term involved in it.

Appears in 2 question papers
Chapter: [0.01] Circular Motion
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