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This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.
1. |
An LCR meter is used to measure ______. |
A. | current |
B. | power |
C. | inductance |
D. | voltage |
Answer» D. voltage | |
2. |
Among the following which one of the bridge method is commonly used for finding mutual inductance |
A. | Wein Bridge |
B. | Schering Bridge |
C. | De Sauty Bridge |
D. | Heaviside Campbell Bridge |
Answer» E. | |
3. |
A capacitance of 250 pF produces resonance with a coil at a frequency of \(\left( {\frac{2}{\pi }} \right) \times {10^6}\) Hz, while at the second harmonic of this frequency, resonance is produced by a capacitance of 50 pF. The self-capacitance of the coil will be nearly |
A. | 16.7 pF |
B. | 20.5 pF |
C. | 24.3 pF |
D. | 28.1 pF |
Answer» B. 20.5 pF | |
4. |
A moving coil instrument has a resistance of 70 Ω and gives full scale deflection of 100 scale divisions for a current of 1 mA. The instrument is connected in parallel with a shunt of 30 Ω resistance and this combination is then connected in series with a load and supply. Determine the current in the load when the instrument gives an indication of 80 scale divisions. |
A. | 1 mA |
B. | 3.2 mA |
C. | 2.66 mA |
D. | 4 mA |
Answer» D. 4 mA | |