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• Statement 1 is correct because electricity is indeed due to the movement of electrons in an electrical circuit. • Statement 2 is incorrect because, in most cases, the flow of electric current is the movement of electrons, not positive charges. In metals, electrons move towards the positive terminal, creating a current. • Therefore, the correct answer is (a) only statement 1 is correct.
The energy emitted by the Sun is primarily due to what process?
Which of the following statement is true for a wavelength of 1000 nm. A p-n photodiode is fabricated from a semiconductor with band gap of 1.9 eV.
Two capacitors of 6 µF and 3 µF are connected in series and a potential difference of 90 V is applied. The energy stored in the system is:
The amount of light entering in eye is controlled by:
Which gate gives a high output only when both inputs are low?
What is the process of melting also called?
Tear gas used by the police to disperse the mob contains –
The speed of sound in the following media are Va, Vb and Vc for air, water and steel. Arrange the speed of sound.
When a cannonball is fired, its motion is an example of which type of motion?
Which of the following is not a recognized type of inertia?
