HSC Science (Electronics) १२ वीं कक्षा - Maharashtra State Board Important Questions

State applications of eddy currents.

An alternative voltage given by V = 140 sin 314t is connected across a pure resistor of 50 Ω. Find

1. The frequency of the source.
2. The rms current is through the resistor.

An electron, a proton, an α-particle, and a hydrogen atom are moving with the same kinetic energy. The associated de Broglie wavelength will be longest for ______.

What is Magnetic intensity?

State the principle on  which transformer works.

What is electromagnetic induction?

Draw the circuit diagram of a half-wave rectifier. Hence explain its working. 

Write the functions of three segments of a transistor.

Explain the Big Five-Factor Model of personality (OCEAN).

Explain the following concept with an example.

Digitalisation

Write differences.

Pre-Independence and Post-Independence periods of the Women’s Movement in India.

Write differences.

Social Movement and Social Change

How many atoms constitute one unit cell of a face-centered cubic crystal?

What is the formula of a compound in which the element Y forms hcp lattice and atoms of X occupy 2/3^rd of tetrahedral voids?

Define the following term: Primitive unit cells

Define the following term:

Ferromagnetism

Define Anisotropy.

An element with molar mass 27 g/mol forms a cubic unit cell with edge length of 405 p.m. If the density of the element is 2.7 g/cm³, what is the nature of the cubic unit cell?

Draw diagram of bcc unit cell.

Define unit cell.