Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$\text{y}=(0.001\text{mm})\sin\Big[(50\text{s}^{-1})\text{t}+(2.0\text{m}^{-1})\text{x}\Big]$
Calculate the amount of charge flowing in 2 minutes in a wire of resistance 10 W when a potential difference of 20 V is applied between its ends
|
(a) 120 C |
(b) 240 C |
(c) 20 C |
(d) 4 C |
The clear sky appears blue because:
Assertion : Electrons move away from a low potential to high potential region.
Reason : Because electrons has negative charge
|
(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. |
|
(b) If both assertion and reason are true but reason is not the correct explanation of the assertion. |
|
(c) If assertion is true but reason is false. |
|
(d) If the assertion and reason both are false. |
The average binding energy per nucleon in the nucleus of an atom is approximately
|
(a) 8 eV |
(b) 8 KeV |
(c) 8 MeV |
(d) 8 J |
When the speed of electrons increases, then the value of its specific charge
|
(a) Increases |
|
(b) Decreases |
|
(c) Remains unchanged |
|
(d) Increases upto some velocity and then begins to decrease |
In an electroplating experiment, m gm of silver is deposited when 4 ampere of current flows for 2 minute. The amount (in gm) of silver deposited by 6 ampere of current for 40 second will be
|
(a) 4 m |
(b) m/2 |
(c) m/4 |
(d) 2 m |