Basic Science : Electric Current QUESTIONS AND ANSWERS :: part1 : 11 to 15
Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :
11.The flow of electric current in a conductor is due to |
| the Coulomb force on free electrons |
| the Lorentz force on electrons |
| the low resistivity of a conductor |
| the potential difference across the ends of a conductor |
12.In the presence of an electric field, the free electrons |
| move in the direction of the electric field |
| move in all random directions |
| move at a constant speed |
| get accelerated in the direct of electric field |
13.In an electric field, the acceleration of an electron is |
| a = mE/e |
| me/E |
| a = eE/m |
| e/mE |
14.The direction of the conventional current corresponds to the direction in which |
| negative charges flow |
| positive charges flow |
| Neutrons flow |
| mesons flow |
15.In the absence of an electric field, the free electrons in a metal move |
| in the same direction |
| at a steady speed |
| in opposite directions |
| at random |
More Electric Current QUESTIONS AND ANSWERS available in next pages
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