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This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The power delivered by a battery of emf 10 V is 10 W. Then the current delivered by the battery is …………………A) 10 A B) 1 A C) 100 AD) 0.1 A |
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Answer» Correct option is B) 1 A |
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| 2. |
What is the relationship between length of a conductor and its resistance? Write the experimental procedure to verify that relationship. |
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Answer» 1. The resistance of a conductor is directly proportional to its length for a constant potential difference. 2. Take iron spokes of different lengths with same cross-sectional areas. 3. Make a circuit by connecting an iron spoke with battery, ammeter and switch in series. 4. Put the switch on and allow the current to pass in the circuit. Measure the ammeter reading. 5. Repeat this for other lengths of the iron spokes. Note the corresponding values of currents. 6. The resistance of each spoke increases with increase in the length of the spoke. |
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| 3. |
Can we classify the materials based on Ohm’s law? |
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Answer» Yes, the materials which obey Ohm’s law are conductors and others are same conductors or non-conductors. |
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| 4. |
Read the following two statements and pick the correct answer a) Semi conductors obey the Ohm’s law. b) Metallic conductors obey the Ohm’s law. A) only a is true B) only b is true C) both a and b are trueD) both a and b are false. |
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Answer» B) only b is true |
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| 5. |
Statement X: The materials which obey Ohm’s law are called ohmic materials. Statement Y : The materials which do not obey ohm’s law are called non-ohmic conductors. A) Both statements are true B) Both statements are false C) X is true, Y is false D) X is false, Y is true |
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Answer» A) Both statements are true |
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| 6. |
The ratio of potential difference to current is …………………. A) voltage B) specific resistance C) current D) resistance |
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Answer» D) resistance |
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| 7. |
How electric charge is calculated? |
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Answer» Electric charge (I) = \(\frac{Electric charge (Q)}{Time interval (t)}\) |
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| 8. |
What is conductor? |
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Answer» The material which transfers energy from the battery (source) to the bulb (consumer) is called a conductor.
The substances which allow current to flow through them is called conductor . Example : human being ,gold,silver etc... |
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