MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is an example of a non-ohmic conductor? |
| A. | Copper |
| B. | Silver |
| C. | Silicon |
| D. | Nichrome |
| Answer» D. Nichrome | |
| 2. |
Identify the type of conductor in which the variation of current with potential difference may depend upon the sign of the potential difference applied. |
| A. | Metallic conductor |
| B. | Thyristor |
| C. | Water voltameter |
| D. | p-n junction diode |
| Answer» E. | |
| 3. |
For small currents, ‘X’ obeys Ohm’s law. But when large currents are passed through the same conductor, it deviates from ohmic behaviour. Identify X. |
| A. | Metallic conductor |
| B. | Gallium arsenide |
| C. | Thyristor |
| D. | p-n junction diode |
| Answer» B. Gallium arsenide | |
| 4. |
Ohm’s law is a fundamental law of nature. State true or false. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
Identify the type of conductor represented by the V-I characteristic curve given below. |
| A. | Metallic conductor |
| B. | Water voltameter |
| C. | Thyristor |
| D. | Semiconductor |
| Answer» E. | |
| 6. |
Which of the following is an example of an Ohmic conductor? |
| A. | Nichrome |
| B. | Water voltameter |
| C. | Gallium Arsenide |
| D. | Thyristor |
| Answer» B. Water voltameter | |
| 7. |
Which of these relation holds good for an Ohmic conductor? |
| A. | V-I relationship is non-linear |
| B. | The straight-line V-I graph pass through the origin |
| C. | V-I relationship is non-unique |
| D. | V-I relationship depends on the sign of V for the same absolute value of V |
| Answer» C. V-I relationship is non-unique | |
| 8. |
Identify the type of conductors whose V-I relationship is linear. |
| A. | Thyristor |
| B. | Non-ohmic conductors |
| C. | Ohmic conductors |
| D. | Superconductors |
| Answer» D. Superconductors | |