Currret electricity mcq with answers Electric current is the flow of: A. Electrons B. Protons C. Neutrons D. Photons Answer: A The unit of electric current is: A. Ampere B. Volt C. Ohm D. Watt Answer: A Ohm’s law states that the current flowing through a conductor is directly proportional to the: A. Voltage across … Read more
Mining objective mcq questions and answers Which of the following is not a method of underground mining? A. Longwall mining B. Open-pit mining C. Room and pillar mining D. Cut-and-fill mining Answer: B The process of extracting valuable minerals or other geological materials from the earth is known as: A. Mining B. Drilling C. Blasting … Read more
Transfermers mcq questions and answers The transfer function of a system represents the relationship between the system’s: A. Inputs and outputs B. Resistance and capacitance C. Voltage and current D. Energy and power Answer: A In transfer function representation, Laplace transforms are used to convert: A. Time-domain signals to frequency-domain signals B. AC signals to … Read more
Characteristics of Lines of Magnetic Flux mcq The lines of magnetic flux around a straight current-carrying wire are:a) Straight linesb) Circular loopsc) S-shaped curvesd) Hyperbolic curves Answer: b) Circular loops The lines of magnetic flux inside a bar magnet:a) Start from the north pole and end at the south poleb) Start from the south pole … Read more
Direction of Induced EMF mcq When a conductor moves in a magnetic field, the induced EMF is always directed:a) Along the direction of motionb) Opposite to the direction of motionc) Parallel to the magnetic fieldd) Perpendicular to the magnetic field Answer: d) Perpendicular to the magnetic field According to Lenz’s law, the direction of the … Read more
Magnetic Field of a Solenoid Mcq The magnetic field inside a solenoid is:a) Zerob) Uniformc) Non-uniformd) Varies with timeAnswer: b) Uniform The direction of the magnetic field inside a solenoid is:a) From south pole to north poleb) From north pole to south polec) Along the axis of the solenoidd ) Perpendicular to the axis of … Read more
Magnitude of the Generated Induced EMF Mcq The magnitude of the induced EMF is directly proportional to:a) The resistance of the circuitb) The current flowing through the circuitc) The change in magnetic field strengthd) The voltage applied to the circuitAnswer: c) The change in magnetic field strength The magnitude of the induced EMF is inversely … Read more
Magnetic field Mcq questions answer What is a magnetic field?a) A region around a magnet where the force of attraction or repulsion is feltb) A region where electric charges are presentc) A region where there is a strong electric currentd) A region where there is a strong gravitational forceAnswer: a) A region around a magnet … Read more
Force on a Current Carrying Conductor mcq The force experienced by a current-carrying conductor in a magnetic field is due to the interaction between:a) Electric field and magnetic fieldb) Magnetic field and gravitational fieldc) Electric field and gravitational fieldd) Magnetic field and current flowAnswer: d) Magnetic field and current flow According to the right-hand rule, … Read more
Direction of Magnetic Field mcq According to the right-hand rule, the direction of the magnetic field around a current-carrying wire is:a) Along the wireb) Opposite to the current flowc) Clockwise around the wired) Counterclockwise around the wireAnswer: d) Counter clockwise around the wire The direction of the magnetic field inside a solenoid carrying current is:a) … Read more
