MCQ
A rectangular coil is rotating with a uniform angular velocity between magnetic poles. The correct graph of change of magnetic flux $\phi$ passing through the coil and induced emf (c) with time is :
- A

- B

- ✓

- D







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In a moving coil galvanometer, the deflection of the coil θ is related to the electrical current i by the relation
|
(a) i ∝ tanθ |
(b) i ∝ θ |
(c) i ∝ |
(d) i ∝ |
According to modern astronomers into how many constellations, the whole sky is divided
|
(a) 1011 |
(b) 88 |
(c) 880 |
(d) 5000 |
According to de-Broglie, the de-Broglie wavelength for electron in an orbit of hydrogen atom is 10–9 m. The principle quantum number for this electron is
|
(a) 1 |
(b) 2 |
(c) 3 |
(d) 4 |