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ENTRANCE TEST – 2010 Multiple Questions and Answers.
| 56. | The substances like germanium and silicon have | ||
| A. | Negative temperature coefficients | ||
| B. | Positive temperature coefficients | ||
| C. | Both A and B | ||
| D. | None of the above | ||
| 57. | The sensitivity of a galvanometer can be decreased by | ||
| A. | Increasing magnetic field | ||
| B. | Increasing number of turns of the coil | ||
| C. | Increasing c BAN Ration | ||
| D. | Decreasing length of couple ‘c’ | ||
| 58. | Force on a current carrying conductor in a uniform magnetic field is | ||
| A. | F = NIA cos α | ||
| B. | F = μnI | ||
| C. | F = ILB sin α | ||
| D. | F = ILA cos α | ||
| 59. | Ethanol reacts with Ammonia to produce ethyl amine, the catalyst is | ||
| A. | ZnCl2 | ||
| B. | ThO2 | ||
| C. | C6H5N | ||
| D. | Cr2O3 | ||
| 60. | Which set of the prefixes gives values in increasing order? | ||
| A. | Pico, Mega, Kilo, Tera | ||
| B. | Pico, Micro, Mega, Giga | ||
| C. | Tera, Pico, Micro, Kilo | ||
| D. | Giga, Kilo, Milli, Nano | ||
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