The influence of unbalanced forces and the laws governing the motion are discussed in this topic. Newton Laws of motion […]
Category: Physics
WIND INSTRUMENTS Clarinets, flute, saxophone, trumpet are examples of wind musical instruments. A musical note originates from a source vibrating in […]
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Sound wave
The Compound Microscope The Astronomical Telescope The Human Eye THE COMPOUND MICROSCOPE The compound microscope produces a greater magnification than […]
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Determination of refractive Index
The Compound Microscope The Astronomical Telescope The Human Eye THE COMPOUND MICROSCOPE The compound microscope produces a greater magnification than […]
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Optical Instruments
The Compound Microscope The Astronomical Telescope The Human Eye THE COMPOUND MICROSCOPE The compound microscope produces a greater magnification than […]
LENSES Lenses are used as magnifying glasses. They are also used in microscopes, telescopes, cameras and projectors. The human eye […]
REFRACTION THROUGH TRIANGULAR AND RECTANGULAR PRISM Triangular prism Rectangular prism Angle of deviation Real and apparent depth Triangular prism When […]
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Power in A.C Circuit
The average power dissipated in an A.C. circuit per cycle is given as: P=12I0V0 But, I0=2(Irms)−−−−−−√ and V0=2(Vrms)−−−−−−√∴P=12(2(Irms)−−−−−−√×2(Vrms)−−−−−−√)∴P=2IrmsVrms2∴P=IrmsVrms According to Ohm’s law, […]
When an a.c is applied through a capacitor, current leads by 90° or π2radians. They are out of phase. The ability […]
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Alternating Current AC Circuits
An a.c. circuit is one in which the magnitude of the current changes periodically with time. The a.c. is produced […]