MCQOPTIONS
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MCQOPTIONS
This section includes 14 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. |
WHICH_OF_THE_FOLLOWING_IS_TRUE_ABOUT_AN_IDEAL_VOLTAGE_SOURCE??$ |
| A. | zero resistance |
| B. | small emf |
| C. | large emf |
| D. | infinite resistance |
| Answer» B. small emf | |
| 2. |
With some initial change at t = 0+, a capacitor will act as$ |
| A. | open circuit |
| B. | short circuit |
| C. | a current source |
| D. | a voltage source |
| Answer» E. | |
| 3. |
A_dependent_source$ |
| A. | may be a current source or a voltage source |
| B. | is always a voltage source |
| C. | is always a current source |
| D. | none of the mentioned |
| Answer» B. is always a voltage source | |
| 4. |
A voltage source of 300 V has internal resistance of 4Ω and supplies a load having the same resistance. The power absorbed by the load is$ |
| A. | 1150 W |
| B. | 1250 W |
| C. | 5625 W |
| D. | 5000 W |
| Answer» D. 5000 W | |
| 5. |
A voltage source having an open circuit voltage of 200 V and internal resistance of 50Ω is equivalent to a current source of$ |
| A. | 4A with 50Ω in parallel |
| B. | 4A with 50Ω in series |
| C. | 0.5A with 50Ω in parallel |
| D. | none of the mentioned |
| Answer» B. 4A with 50‚Äö√Ñ√∂‚àö√´¬¨‚àÇ in series | |
| 6. |
A constant current source supplies a electric current of 200 mA to a load of 2kΩ. When the load changed to 100Ω, the load current will be$ |
| A. | 9mA |
| B. | 4A |
| C. | 700mA |
| D. | 12A |
| Answer» C. 700mA | |
| 7. |
If a current source is to be neglected, the terminals across the source are |
| A. | replaced by a source resistance |
| B. | open circuited |
| C. | replaced by a capacitor |
| D. | short circuited |
| Answer» C. replaced by a capacitor | |
| 8. |
Constant voltage source i? |
| A. | active and bilateral |
| B. | passive and bilateral |
| C. | active and unilateral |
| D. | passive and unilateral |
| Answer» D. passive and unilateral | |
| 9. |
A practical current source can also be represented as |
| A. | a resistance in parallel with an ideal voltage source |
| B. | a resistance in parallel with an ideal current source |
| C. | a resistance in series with an ideal current source |
| D. | none of the mentioned |
| Answer» C. a resistance in series with an ideal current source | |
| 10. |
In a network consisting of linear resistors and ideal voltage source, if the value of resistors are doubled, then voltage across each resistor |
| A. | increases four times |
| B. | remains unchanged |
| C. | doubled |
| D. | halved |
| Answer» C. doubled | |
| 11. |
In case of ideal current sources, they have |
| A. | zero internal resistance |
| B. | low value of voltage |
| C. | large value of currrent |
| D. | infinite internal resistance |
| Answer» E. | |
| 12. |
Voltage source and terminal voltage can be related as |
| A. | terminal voltage is higher than the source emf |
| B. | terminal voltage is equal to the source emf |
| C. | terminal voltage is always lower than source emf |
| D. | terminal voltage cannot exceed source emf |
| Answer» D. terminal voltage cannot exceed source emf | |
| 13. |
For a voltage source to be neglected, the terminals across the source should be |
| A. | replaced by inductor |
| B. | short circuited |
| C. | replaced by some resistance |
| D. | open circuited |
| Answer» C. replaced by some resistance | |
| 14. |
Pick the incorrect statement among the following |
| A. | Inductor is a passive element |
| B. | Current source is an active element |
| C. | Resistor is a passive element |
| D. | Voltage source is a passive element |
| Answer» C. Resistor is a passive element | |