Electromagnetic Fields and Their Applications for SS 1
Moving electric charges create magnetic fields, while changing magnetic fields can induce voltage. These effects underpin motors and generators.
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Measurement of Physical Quantities and Experimental Errors for SS 1
Measurements contain uncertainty from instruments and observation. Repeated readings, calibration and correct units help identify and reduce errors.
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Construction and Calibration of Simple Measuring Instruments for SS 1
A simple measuring instrument needs a reference scale and calibration. Comparing readings with a known standard reveals zero errors and scale inaccuracies.
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Solar Energy Conversion to Electricity and Heat for SS 1
Photovoltaic cells convert sunlight directly into electricity, whereas solar thermal collectors capture sunlight as heat for water or other uses.
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Solar Panels, Heat Collectors and Solar Harnessing Devices for SS 1
Solar panels generate electricity from light; solar collectors absorb heat. Orientation, shading and maintenance affect how effectively each device works.
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Sensors, Detectors, Types and Applications for SS 1
Sensors detect changes in light, temperature, movement or pressure and turn them into usable signals for monitoring, alarms and automated control.
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Temperature, Thermal Expansion and Heat Energy for SS 1
Heat is energy transferred because of a temperature difference. Heating may raise temperature or cause expansion, depending on the substance and conditions.
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Meaning, Types and Properties of Force Fields for SS 1
A force field is a region where an object experiences a force without contact. Gravitational, electric and magnetic fields act on different properties.
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Gravitational Field, Free Fall and Acceleration Due to Gravity for SS 1
Gravity attracts masses towards one another. Near Earth's surface, freely falling objects accelerate at about 9.8 m/s² when air resistance is negligible.
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Electric Fields, Field Lines and Electric Forces for SS 1
An electric field surrounds a charge and exerts forces on other charges. Field lines point from positive to negative and show field direction.
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Magnetic Fields, Poles and Magnetic Field Lines for SS 1
A magnetic field surrounds a magnet or current-carrying conductor. Field lines run from north to south outside a magnet and never cross.
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Work, Energy, Power and Energy Conservation for SS 1
Work occurs when a force causes displacement; power measures the rate of energy transfer. Energy changes form but is conserved in a closed…
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