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Question: In a communication system, what does \'multiplexing\' refer to?Options: Combining multiple..
Question: What is the primary purpose of a modulator in a communication system?Options: To amplify t..
Question: Which of the following is a disadvantage of Frequency Modulation (FM)?Options: Less bandwi..
Question: What is the Nyquist rate for a signal with a maximum frequency of 5 kHz?Options: 5 kHz10 k..
Question: Which modulation technique varies the amplitude of the carrier signal?Options: Frequency M..
Question: In a communication system, if the signal-to-noise ratio (SNR) is 20 dB, what is the linear..
Question: What is the bandwidth of a signal that occupies a frequency range from 1 kHz to 3 kHz?Opti..
Question: Which of the following orbitals is the highest in energy?Options: 3s3p4s3dCorrect Answer: ..
Question: What is the maximum number of electrons in the d-subshell?Options: 261014Correct Answer: 1..
Question: What is the magnetic field strength at the center of a square loop of side a carrying a cu..
Question: If the current in a circular loop is reversed, what happens to the direction of the magnet..
Question: What is the magnetic field due to a magnetic dipole at a point along its axial line?Option..
Question: What is the magnetic field at a point on the axis of a circular loop of radius R carrying ..
Question: A solenoid of length L and cross-sectional area A carries a current I. What is the magneti..
Question: What is the direction of the magnetic field produced by a current-carrying wire using the ..
Question: Two parallel wires carrying currents I₁ and I₂ in the same direction are separated by a di..
Question: A long straight conductor carrying current I produces a magnetic field B at a distance r f..
Question: What is the magnetic field at the center of a circular loop of radius R carrying a current..
Question: If a magnetic field is applied perpendicular to a loop of wire, what is the effect on the ..
Question: In a generator, what is the role of the rotating coil in a magnetic field?Options: To crea..
Question: A transformer operates on the principle of electromagnetic induction. What is the primary ..
Question: If the resistance of a circuit is doubled while keeping the induced EMF constant, what hap..
Question: A loop of wire is moved into a magnetic field at a constant speed. What is the effect on t..
Question: A coil of wire is placed in a magnetic field. If the magnetic field strength is increased,..
Question: What is the effect of increasing the number of turns in a coil on the magnetic field produ..
Question: What happens to the magnetic field inside a solenoid if the current is reversed?Options: R..
Question: What is the magnetic field at a distance r from an infinitely long straight wire carrying ..
Question: If the radius of a circular loop carrying current is halved, how does the magnetic field a..
Question: For a solenoid of length L and n turns per unit length carrying current I, what is the mag..
Question: What is the unit of magnetic field strength (B)?Options: TeslaWeberHenryAmpereCorrect Answ..
