Download LMS Substation Iv Year 2 Lesson 11 Review 2026-Complete Exam Set With Questions And Answer and more Exams Electromagnetism and Electromagnetic Fields Theory in PDF only on Docsity!
LMS Substation Iv Year 2 Lesson
11 Review 2026 - Complete Exam
Set With Questions And Answers
When a coil induces a voltage into itself, it is known as? inductance. a. auto b. back c. counter d. self - correct-answer - d. self The ability of one coil to induce a voltage into another coil is called? induction. a. common b. magnetic c. mutual d. shared - correct-answer - c. mutual A coil of wire wrapped around a core is called a(n)?. a. capacitor b. inductor c. magneto d. transducer - correct-answer - b. inductor
For a voltage to be induced in a conductor, there must be relative motion between the conductor and a magnetic field. True False - correct-answer - True The ability of a current-carrying conductor, coil, or circuit to induce a voltage into itself or adjacent circuits is called?. a. coupling b. inductance c. reactance d. transference - correct-answer - b. inductance The letter? is used in calculations to represent inductance. a. I b. L c. M d. N - correct-answer - b. L A transformer operates under the principle of?. a. coil interaction
When a conductor that is cutting through a magnetic field changes direction, the ? of the induced voltage will be reversed. a. frequency b. intensity c. polarity d. velocity - correct-answer - c. polarity If the current flowing through a conductor decreases, the magnetic field around the conductor will increase. True False - correct-answer - False Another term for counter EMF is? EMF. a. back b. opposing c. residual d. reverse - correct-answer - a. back Lenz's Law states, "An induced voltage or current opposes the motion that created the induced voltage or current." Select one: True
False - correct-answer - True The induced voltage is? out of phase with the applied voltage. a. 0° b. 90° c. 180° d. 360° - correct-answer - c. 180° Maximum EMF is induced when a conductor cuts a magnetic field at?. a. 0° b. 90° and 270° c. 180° d. 360° - correct-answer - b. 90° and 270° Cutting more magnetic lines of force per second will increase the amount of voltage induced into a conductor. True False - correct-answer - True When there is no current flowing through a conductor, the magnetic field around the conductor is?.
c. constriction d. permeability - correct-answer - d. permeability If an iron core is inserted into a coil, the inductance of the coil will decrease. True False - correct-answer - False Moving a magnetic field across a stationary conductor will not induce a voltage in the conductor. True False - correct-answer - False Inductance has no effect on a DC circuit as long as the current is constant. True False - correct-answer - True
