Important Questions of 12th Physics
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- Mechanish of conduction of electricity through a metal.
- Relation between electric Current ( I ) and Draft velocity.
- Define current density.
- Define Ohm's law
- Define Resistance and Conductance.
- Define Resistivity and Conductivity.
- Experimental Verification of Ohm's law.
- Define series Combination and so Combination of resistors.
- Parallel Combination of resistors.
- Define Galvanimeter.
- Conversion of Galvanometer into Voltmeters.
- Define DC circuit.
- Define Emf of a cell.
- Define joule's law of heating effect.
- Experimental Verification of Joule's law of heating effect.
- Define Electrolysis.
- Define Faraday's 1st law of electrolysis and explain with experimental Verification.
- Define Faraday's 2nd law of electrolysis.
- Experimental Verification of Faraday's 2nd law of electrolysis.
- Define Kirchoff's 1st law of kirchoff's current law( or kirchoff's junction rule)
- Define Kirchoff's 2nd law of kirchoff's mesh(or kirchoff's voltage law).
- Define potentiometer and explain its principle of working with diagram.
- Define see back effect.
- Explain of see back effect.
- Verification of thermo cmf with temperature.
- Define Maxwell's Cork Screw Rule.
- Define magnetic effect of electric circuit.
- Torque experienced by a current.
- Define Quark model.
- Induced e.m.f in a rotating coil.
- Explain discrempancies of Newton's formula for the velocity of sound. Why is laplace correction necey?
- Conversion of Galvanometer into Ammeter.
- Deduce an expression for heat developed in a conductor due to the passage of an electric current.
- Determine the internal resistance of the battery.
- State the principle of potentiometer.
- Derive an expression for the emf induced in a rectangular coil rotating in a uniform magnetic field.
- State Biot and Savast law. Derive an expression for the magnetic field at a point due to a long straight conductor carrying current.