IIT JEE : Electromagnetic Induction Electromagnetic Waves QUESTIONS AND ANSWERS :: part3 : 16 to 20
Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :
16.If an e. m. f. of 300 micro volts is induced in a coil when current in it changes from 13 amperes to 7 amperes in 0.5 sec, then the value of the self inductance of the coil will be |
| 25 micro henry |
| 20 micro henry |
| 27 micro henry |
| 17 micro henry |
17.A bar magnet falls through a metal ring. The acceleration will be |
| equal to g |
| less than g |
| greater than g |
| zero |
18.The laws of electromagnetic induction are the contribution of |
| Faraday |
| Maxwell |
| Lawrence |
| Hall |
19.L / R has the dimensions of |
| mass |
| length |
| henry |
| time |
20.The principle of eddy currents is used in |
| galvanometer |
| speedometer |
| pyrometer |
| barometer |
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