CBSE Class X – Science Physics Exam (Full Syllabus)

The magnetic field lines:

The instrument that use to direct electric current in the circuit is known as:

A D.C generator works on the theory of:

when an iron core is inserted into a current carrying solenoid

The change in magnetic feld lines in a coil is the cause of induced electric current in it. Name the underlying phenomenon.

The phenomenon discovered by Faraday.

The law states that if the forefinger indicates the direction of the magnetic field and thumb shows the direction of motion of conductor, then the middle finger will show the direction of induced current

When a strong bar magnet is pushed into a coil of insulated copper wire connected to a galvanometer, we will observe a deflection in the galvanometer in

The values of mA and µA are:

The instrument used for measuring electric current is:

Two devices are connected between two points say A and B in parallel. The physical quantity that will remain the same between the two points is

The least resistance obtained by using 2 Ω, 4 Ω, 1 Ω and 100 Ω is:

When electric current is passed, electrons move from:

True test of charge is

The commercial unit of electrical energy

S.I unit of resistivity

The maximum resistance which can be made using four resistors each of 2 Ohm

At noon, the Sun looks white as:

A clear sky appears blue, because:

Which of the following phenomena contributes signifcantly to the reddish appearance of the sun at sunrise or sunset?

The sky appears black to an astronaut

The defect the eye cannot focus objects both horizontally and vertically at the same time

Lenses which have both concave and convex structure.

The emergent ray in a prism bend at an angle to the direction of the

The refractive index of glass is least for