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Numericals from applications of Gauss law, forces between the system of charges and Electric field due to the system of charges are asked very frequently. It is also advised to make a small summary of all the important topics for quick review.
Electronic Charges and Field
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The unit provides a good weightage to the numerical and direct derivations, so it is advised that no topic should be skipped. Derivations or topics like energy stored in the capacitors, potential due to electric dipole, and potential energy of a system of charges are frequently asked.
Electrostatic Potential and Capacitance
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Definitions and relations of resistance, conductance, resistivity, conductivity, etc are frequently asked for short and very short answers. Graph for resistivity for metals, alloys and semiconductors should be practised.
Current Electricity
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Direct derivations from topics like Magnetic force on the axis of the circular coil, ampere circuital law, forces between two current-carrying wires, and torque on a current-carrying loop in the magnetic field are frequently asked.
Moving Charges and Magnetism
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Direct derivations from topics like Magnetic force on the axis of the circular coil, ampere circuital law, forces between two current-carrying wires, and torque on a current-carrying loop in the magnetic field are frequently asked.
Electromagnetic Induction
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To know more about how to score good marks in CBSE 12th, Physics, visit the GMU website.