ETEA RECONDUCTED PAPER 2023 ETEA 2023 ( PART 16 ) 1. Ohm’s law states that the current is directly proportional to _____ and inversely proportional to _____ . Voltage, resistance Resistance, voltage Voltage, current Resistance. current 2. The ability to produce an electromotive force by changing the magnetic field inside a coil is used to generate Mechanical energy Magnetic energy only Electricity Electromagnetic force 3. The absolute potential energy of a spaceship on the surface of the earth is GmMe/Re -Gme/Re GmMe/Re^2 GmMe/2Re 4. The bird perching on a high-power line does not get electric shock This is because The whole body of the bird sitting on the live wire Is a zero potential and hence no current flows through the body Because the air medium between the live wire and the earth contains large number of electrons The whole body of the bird sitting on the live wire is at the same potential and hence no current flows through the body Because the air medium between the live wire and the earth contains large number of charge particles 5. The capacitance of capacitor depends upon Area of the plates All of these Distance between the palates Dielectric between them 6. The Compton’s effect is the phenomenon that describes The change in the wavelength of x-rays when the interact with matter The creation of interference patterns in a double-slit experiment The bending of light when It passes from one medium to another The scattering of the light by prism 7. The current produced by a generator is called Alternating current Variable current Direct current Pulsating current 8. The device used to adjust voltage levels In an electrical circuit is called Capacitor Transformer Voltage regulator Circuit breaker 9. The distance covered by sound wave per unit time is called Speed of sound wave Velocity of sound wave Amplitude of sound wave Wavelength of sound wave 10. The domestic electricity supply has a frequency of 150Hz 300hz 50Hz 100hz 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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