ETEA PAST PAPER 2020 ( PART 4 ) 1. In capacitors, energy is stored in the form of: Magnetic induction Gravitational energy Kinetic energy Electric intensity 2. One kilowatt-hours is commonly termed as one commercial uniq of electric energy which is equal to: 3.6 x 10^6 J 3.6 x 10^4 J 3.6 x 10^5 J 3.6 x 10^3 J 3. When a wire is compressed and its radius becomes 2R then its resistance will be: 4R 16R 1/16R 1/4R 4. One of the following is an ohmic device: Filament bulb Copper wire Semiconductor diode Transistor 5. The change in resistance of metallic conductors at temperature below 0 C is: Linear Curve Non linear Curvilinear 6. When current are flowing through two long parallel wires in same direction electric field between them is: Infinite Remains constant Weak Strong 7. Magnetic flux is maximum when the angle between magnetic field and vector area is: 90° 180° 0° 45° 8. Transformer is device which steps up or steps down the input: Power Voltage Current Energy 9. If a stationary bar magnet is placed near a coil at rest so maximum lines of force passes through the coil, the galvanometer shows: No current Intermediate value of current Maximum current Minimum current 10. Ohm time’s farad is equivalent to: Capacitor Time Distance Charge Loading … Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
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