- A1.6 × 10 + 19C.
- B1.6 × 10 - 19C.
- C1.6 × 10 - 20C.
- DNone.
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A resistor
dissipates the power P when connected to a certain generator. If the resistor
is put in series with
, the power dissipated by ![]()
|
(a) Decreases |
|
(b) Increases |
|
(c) Remains the same |
|
(d) Any of the above depending upon the relative values of |
A proton and an a-particle are accelerated through a potential difference of 100 V. The ratio of the wavelength associated with the proton to that associated with an a-particle is
|
(a) |
(b) 2 : 1 |
(c) 2 |
(d) |
Two point charges 3 × 10–6 C and 8 × 10–6 C repel each other by a force of 6 × 10–3 N. If each of them is given an additional charge – 6 × 106 C, the force between them will be
|
(a) 2.4 × 10–3 N (attractive) |
(b) 2.4 × 10–9 N (attractive) |
|
(c) 1.5 × 10–3 N (repulsive) |
(d) 1.5 × 10–3 N (attractive) |