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Physics 12 Physics 12
UNIT I: ELECTROSTATICS
UNIT II: CURRENT ELECTRICITY
UNIT III: MAGNETIC EFFECTS OF CURRENT AND MAGNETISM
UNIT IV: ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENTS
UNIT VI: OPTICS
UNIT VII: DUAL NATURE OF RADIATION AND MATTER
UNIT VIII: ATOMS AND NUCLEI
UNIT IX: SEMICONDUCTOR ELECTROCNICS
- Junction transistor
- transistor action
- Characteristics of transistor
- transistor as an amplifier (CE configuration)
- basic idea of analog and digital signals
- Logic gates (OR. AND. NOT. NAND and NOR)
UNIT X: COMMUNICATION SYSTEM
- Elements of a communication system (block diagram only)
- bandwidth of signals (speech, TV and digital data)
- bandwidth of transmission medium
- propagation of electromagnetic waves in the atmosphere
- sky and space wave propagation
- satellite communication
- Need for-modulation
- qualitative idea about amplitude modulation and frequency modulation
- advantages of frequency modulation over amplitude modulation
- basic idea about internet
- mobile telephony and global positioning system (GPS)
BETA
