Question
| (i) Current | (a) watt |
| (ii) Current density | (b) $ms ^{-1}$ |
| (iii) Drift velocity | (c) ampere metre ${ }^{-2}$ |
| (iv) Power ${ }) | (d) ampere |
| (i) Current | (a) watt |
| (ii) Current density | (b) $ms ^{-1}$ |
| (iii) Drift velocity | (c) ampere metre ${ }^{-2}$ |
| (iv) Power ${ }) | (d) ampere |
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| (i) H.C. Oersted | (a) Cyclotron |
| (ii) William Gilbert | (b) Magnetic Lorentz force |
| (iii) Lawrence | (c) Electromagnetism |
| (iv) Lorentz | (d) Earth powerful magnet |
| (i) Electric charge | (a) $Cm$ |
| (ii) Dipole moment | (b) $Nm ^2 C ^{-1}$ |
| (iii) Electric field | (c) coulomb |
| (iv) Electric flux | (d) $NC ^{-1}$ |
| I | II |
| A. Einstein theory | a. 1902 |
| B. Hertz observation | b. 1905 |
| C. Hallwacks observation | c. 1887 |
| D. Lenard's observation | d. 1888 |
Type of impedance Phase between voltage and current
| (i) Resistance | (a) $90^{\circ}$ lead |
| (ii) Inductance | (b) between $0^{\circ}$ and $90^{\circ}$ |
| (iii) Capacitance | (c) $0^{\circ}$ |
| (iv) RLC | (d) $90^{\circ} lag$ |
| (i) Hysteresis loss | (a) Stelloy |
| (ii) Iron loss | (b) Shell type core |
| (iii) Copper loss | (c) Mumetal and silicon |
| (iv) Flux loss | (d) Low resistance |
| (i) Artificial magnet | (a) Tangent Galvanometer |
| (ii) Magnetic flu× | (b) Desired shape |
| (iii) High energy accelerator | (c) Weber |
| (iv) Measurement of small current | (d) Cyclotron |
| (i) Positive and negative | (a) Michael Faraday |
| (ii) Electrostatic force | (b) Gauss |
| (iii) Concept of field ${ } | (c) Benjamin Franklin |
| (iv) $q$ in arbitrary closed surface | (d) coulomb |