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What is the Principle of an Electric motor?
Concept: Electric Motor
What is the Principle of an Electric motor?
Concept: Electric Motor
What is a solenoid?
Concept: Applications of Ampere’s Circuital Law > Magnetic Field of a Long Straight Solenoid
What is a solenoid?
Concept: Applications of Ampere’s Circuital Law > Magnetic Field of a Long Straight Solenoid
Give a scientific reason.
Tungsten metal is used to make a solenoid type coil in an electric bulb.
Concept: Heating Effect of Electric Current
Give a scientific reason.
Tungsten metal is used to make a solenoid type coil in an electric bulb.
Concept: Heating Effect of Electric Current
Give a scientific reason:
Danger signals are red in colour.
Concept: Some Natural Phenomena Due to Sunlight
State the rule to determine the direction of a magnetic field produced around a straight conductor-carrying current.
Concept: Right-hand Thumb Rule
How much heat energy is necessary to raise the temperature of 5 kg of water from 20°C to 100°C?
Concept: Specific Heat Capacity
State the rule to determine the direction of a magnetic field produced around a straight conductor-carrying current.
Concept: Right-hand Thumb Rule
Explain the construction and working of an electric generator (AC) with the help of a neat diagram.
Concept: A.C. Generator
Observe the given figure showing the orbit of a planet moving around the Sun and write the three laws related to it:
The orbit of a planet moving around the Sun
Concept: Kepler’s Laws
Alkaline earth metals have valency 2. This means that their position in the modern periodic table is in ______.
Concept: Classification of Elements
An element has its electron configuration as 2, 8, 2. Now answer the following question.
What is the atomic number of this element?
Concept: The Modern Periodic Table >> Modern Periodic Table and Electronic Configuration of Elements
An element has its electron configuration as 2, 8, 2. Now answer the following question.
To which period does this element belong?
Concept: The Modern Periodic Table >> Modern Periodic Table and Electronic Configuration of Elements
Observe the following diagram and answer the questions given below:
- Identify the above diagram. (1)
- Write the principle on which the above appliance works. (1)
- Write the working of the above appliance. (2)
- Write the use of the above appliance. (1)
Concept: Electric Generator
Give a scientific reason.
Simple microscope is used for watch repairs.
Concept: Magnification
Name the following:
Main ore of aluminium.
Concept: Basic Principles of Metallurgy > Extraction of Metals
Give a scientific reason.
Simple microscope is used for watch repairs.
Concept: Magnification
