The potential at a point due to an electric dipole will be maximum and minimum when the angles between the axis of the dipole and the line joining the point to the dipole are respectively
|
(a) 90° and 180 ° |
(b) 0° and 90° |
(c) 90 ° and 0° |
(d) 0° and 180° |
(d) 0° and 180°
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Energy conversion in a photoelectric cell takes place from
|
(a) Chemical to electrical |
(b) Magnetic to electrical |
|
(c) Optical to electrical |
(d) Mechanical to electrical |
If two wires having resistance R and 2R. Both joined in series and in parallel then ratio of heat generated in this situation, applying the same voltage,
|
(a) 2 : 1 |
(b) 1 : 2 |
(c) 2 : 9 |
(d) 9 : 2 |
Which one of the following statements about uranium is correct
|
(a) |
|
(b) Fast neutrons trigger the fission process in |
|
(c) |
|
(d) |
What is the reading of voltmeter in the following figure
|
(a) 3 V |
(b) 2 V |
(c) 5 V |
(d) 4 V |
