KVPY (Kishore Vaigyanik Protsahan Yojana) Stream-SA (Class 11) Physics: Questions 129 - 131 of 253
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Question number: 129
» Current Electricity » Electric Current
Question
A current of 0.3 A flows through a 30 Ω resistor represented by the circuit diagram. The current in the 100 Ω resistor is,
Circuit Diagram of Combination of Four Resistors
In figure circuit diagram of combination of four resistors is shown. 0.3 A current is passing through 30 (ohm) resistor. Current i is passing through parallel combination of 25 (ohm) and 15 (ohm) resistors.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 1.26 A |
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| b. | 1.66 A |
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| c. | 0.56 A |
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| d. | 0.89 A |
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Question number: 130
» Electrostatics » Electric Potential
Question
An electron with an initial speed of 5.5 × 106 ms-1 is brought to rest by an electric field. The mass and charge of an electron are 9 × 10-31 kg and 1.6 × 10-19 C, respectively. Identify the correct statement
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | The electron moves from a region of higher potential to lower potential through a potential difference of 22.4 μV. |
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| b. | The electron moves from a region of lower potential to higher potential through a potential difference of 85.07 V. |
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| c. | The electron moves from a region of higher potential to lower potential through a potential difference of 85.07 V |
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| d. | The electron moves from a region of lower potential to higher potential through a potential difference of 22.4 μV. |
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Question number: 131
» Gravitation » Geo-Stationary Satellites
Appeared in Year: 2015
Question
If the axis of rotation of the earth were extended into space then it would pass close to
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | The sun |
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| b. | The pole star |
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| c. | The moon |
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| d. | The centre of mass of all the planets in the solar system |
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