The question asks how electric current can be represented. We need to identify the standard method used in electrical engineering and physics to depict electrical circuits and the flow of current within them.
A) Circuit diagram is the standard and universally accepted method for representing electric circuits and the flow of electric current within them using standardized symbols and lines.
This question tests knowledge of India's cybersecurity regulations, specifically the entities mandated to report cybersecurity incidents. The key legislation here is the Information Technology (IT) Act, 2000, and its subsequent amendments and rules, particularly those related to CERT-In (Indian Computer Emergency Response Team).
Correct Option: D) 1, 2 and 3
This question tests fundamental knowledge of the relationship between electricity and magnetism. The key concept is Oersted's discovery, which established that electric currents produce magnetic fields.
C) Magnet — When electric current flows through a wire, it generates a magnetic field around it, causing the wire to behave like a magnet. This is the principle behind electromagnets.
| List I-Subatomic Particles | List II-Charges |
| a) Protons | 1.) Positively charged |
| b) Electrons | 2.) Negatively charged |
| c) Neutron | 3.) Neutral |
The question asks to match subatomic particles (Protons, Electrons, Neutrons) with their respective charges (Positively charged, Negatively charged, Neutral). This requires basic knowledge of atomic structure and the properties of its constituent particles.
A) a-1, b-2, c-3. This option correctly matches Protons with positive charge, Electrons with negative charge, and Neutrons with no charge (neutral).
The question asks to identify the correct statements regarding Near Field Communication (NFC) technology. We need to evaluate each statement based on the characteristics and capabilities of NFC.
C) 1 and 3 only
Statements 1 and 3 accurately describe characteristics of NFC technology. Statement 2 is incorrect because NFC's operational range is very short, typically a few centimeters, not up to a meter.
The question asks for the components that constitute a 'nucleon'. This requires knowledge of basic atomic structure, specifically the particles found within the nucleus of an atom.
B) Protons and Neutrons — A nucleon is defined as either a proton or a neutron, which are the subatomic particles found in the atomic nucleus. Therefore, a nucleon is a combination of protons and neutrons.