MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Network Theory knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A series RLC circuit has a resonant frequency of 550 Hz. The maximum voltage across C is likely to occur at a frequency of ___________ |
| A. | 1000 Hz |
| B. | 2000 Hz |
| C. | 1025 Hz |
| D. | 500 Hz |
| Answer» E. | |
| 2. |
When a lead acid battery is being charged, the specific gravity of the electrolyte will ___________ |
| A. | Decrease |
| B. | Increase |
| C. | Either Increase or Decrease |
| D. | Neither Increase nor Decrease |
| Answer» C. Either Increase or Decrease | |
| 3. |
A resistance R is connected to a voltage source V having internal resistance RI. A voltmeter of resistance R2 is used to measure the voltage across R. The reading of the voltmeter is _____________ |
| A. | ( frac{V_S R_1 R_2}{R_2 R_1 + R_1 R + RR_2} ) |
| B. | ( frac{V_s R}{R + R_s} ) |
| C. | ( frac{VR_1 R_2}{R_1 R_2 R_1 R RR_2} ) |
| D. | ( frac{V_S RR_2}{R_1 R_2 + R_1 R + RR_2} ) |
| Answer» E. | |
| 4. |
Consider a circuit having resistances 2 and 2 in series with an inductor of inductance 2 H. The circuit is excited by a voltage of 12 V. A switch S is placed across the first resistance. Battery has remained switched on for a long time. The current i(t) after switch is closed at t=0 is _____________ |
| A. | 6 |
| B. | 6 3e<sup>-t</sup> |
| C. | 6 + 3e<sup>-t</sup> |
| D. | 3 6e<sup>-t</sup> |
| Answer» C. 6 + 3e<sup>-t</sup> | |
| 5. |
Two capacitors of 0.5 F and 1.5 F capacitance are connected in parallel across a 110 V dc battery. The charges across the two capacitors after getting charged is ___________ |
| A. | 55 C each |
| B. | 275 C each |
| C. | 55 C and 275 C respectively |
| D. | 275 C and 55 C respectively |
| Answer» D. 275 C and 55 C respectively | |
| 6. |
Currents I1, I2 and I3 meet at a junction in a circuit. All currents are marked as entering the node. If I1 = -6sin( t) mA and I2 = 8 cos( t) mA, the I3 is ________ |
| A. | 10 cos( t + 36.87) mA |
| B. | 14 cos( t + 36.87) mA |
| C. | -14 sin( t + 36.87) mA |
| D. | -10 cos( t + 36.87) mA |
| Answer» E. | |