Electrical Engineering : Circuits And Circuit Theory QUESTIONS AND ANSWERS :: part1 : 1 to 5
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
1.For the same peak value which of the following wave will 'have the highest r.m.s. value ? |
| square wave |
| half wave rectified sine wave |
| triangular wave |
| sine wave |
2.The r.m.s. value of a sinusoidal A.C. current is equal to its value at an angle of______degrees. |
| 90 |
| 60 |
| 45 |
| 30 |
3.If two sine waves of the same frequency have a phase difference of JT radians, then |
| both will reach their minimum values at the same instant |
| both will reach their maximum values at the same instant |
| when one wave reaches its maximum value, the other will reach its minimum value |
| none of the above |
4.If two sinusoids of the same frequency but of different amplitudes and phase angles are subtracted, the resultant is |
| a sinusoid of the same frequency |
| a sinusoid of half the original frequency |
| a sinusoid of double the frequency |
| not a sinusoid |
5.For a sine wave with peak value Emax______8.30. the average value is |
| 0.636 Emax |
| 0.707 Emax |
| 0.434 EWc |
| lAUEmax |
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