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Question: If the current in a circular loop is doubled, what happens to the magnetic field at the ce..
Question: What is the magnetic field inside a long solenoid carrying current I?Options: Zeroμ₀nIμ₀I/..
Question: In a generator, mechanical energy is converted into electrical energy through the principl..
Question: A solenoid with a length of 1 m and a cross-sectional area of 0.01 m² carries a current of..
Question: Which of the following statements is true regarding Lenz\'s law?Options: It states that in..
Question: If the area of a loop is doubled while keeping the magnetic field constant, how does the m..
Question: A circular loop of radius r is placed in a uniform magnetic field B. If the magnetic field..
Question: What is the magnetic field due to a current I flowing through a straight wire at a distanc..
Question: For a current-carrying loop, what is the magnetic field at the center if the radius is hal..
Question: What is the effect of increasing the distance from a long straight conductor on the magnet..
Question: If a wire is bent into a semicircular shape, what is the magnetic field at the center of t..
Question: What is the expression for the magnetic field at the center of a circular loop of radius R..
Question: Using Biot-Savart Law, what is the direction of the magnetic field produced by a current f..
Question: Which of the following statements is true about the emission spectrum of hydrogen?Options:..
Question: If a solenoid has n turns per unit length and carries a current I, what is the magnetic fi..
Question: According to Ampere\'s Law, the line integral of the magnetic field B around a closed loop..
Question: What is the magnetic field inside a long, ideal solenoid carrying current?Options: ZeroUni..
Question: In which of the following scenarios will a charged particle not experience any magnetic fo..
Question: The power factor of an AC circuit is defined as the ratio of:Options: Real power to appare..
Question: What is the effect of increasing the resistance in a series AC circuit?Options: Increases ..
Question: What is the formula for calculating the total power in an AC circuit with a power factor?O..
Question: In an AC circuit, if the capacitive reactance is greater than the inductive reactance, the..
Question: What is the impedance of a series RLC circuit at resonance?Options: RLC0Correct Answer: RS..
Question: In a transformer, the ratio of the number of turns in the primary coil to the secondary co..
Question: If a company has a budgeted profit of $100,000 and an actual profit of $90,000, what is th..
Question: If the budgeted overhead is $200,000 and the actual overhead is $180,000, what is the over..
Question: What is the direction of the induced current when the magnetic field through a loop decrea..
Question: What happens to the induced EMF when the area of a loop in a changing magnetic field is in..
Question: In an RL circuit, what is the time constant τ?Options: L/RR/LLR1/(LR)Correct Answer: L/RSo..
Question: A current-carrying wire is placed in a magnetic field. What is the direction of the force ..
