PHYSICS UNIT 6 QUIZZES + PRACTICE TEST QUESTIONS AND ANSWERS
LATEST UPDATED 2025/2026 A COMPLETE EXAM WITH 100%
CORRECT DETAILED ANSWERS GRADED A+ FOR PASS
ammeter - CORRECT ANSWERS instrument that measures electric current
torque - CORRECT ANSWERS what is produced by the loop's constant rotation?
# of loops in secondary coil (Ns) /
# of loops in primary coil (Np)
=
output voltage (Vs) /
input voltage (Vp) - CORRECT ANSWERS formula for calculating voltage on a
transformer
electromagnetic induction - CORRECT ANSWERS induction of an electric current in a
conductor by a changing magnetic field
wire loop - CORRECT ANSWERS receives electric current from commutator and
brushes; creates an electromagnet that seeks the opposite pole of the permanent magnet
electric - CORRECT ANSWERS the movement of electrons creates a ____ current
Faraday's law - CORRECT ANSWERS the induced voltage is proportional to the # of
loops and the rate at which the magnetic field changes
step down transformer - CORRECT ANSWERS what would you use to reduce the input
voltage?
galvanemeter - CORRECT ANSWERS coil wire that can turn between poles of a
permanent magnet to measure small electric currents
, PHYSICS UNIT 6 QUIZZES + PRACTICE TEST QUESTIONS AND ANSWERS
LATEST UPDATED 2025/2026 A COMPLETE EXAM WITH 100%
CORRECT DETAILED ANSWERS GRADED A+ FOR PASS
commutator - CORRECT ANSWERS causes the current within the wire loop to reverse
every half revolution
voltmeter - CORRECT ANSWERS measures voltage
stationary magnet - CORRECT ANSWERS its magnetic field attracts the magnetic field in
the wire loop, making the loop rotate
needle - CORRECT ANSWERS the galvanometer's ____ moves when it detects a current
AC current - CORRECT ANSWERS in the US, most _____ is supplied at 60 Hz
brushes - CORRECT ANSWERS connects current to commutator
compass - CORRECT ANSWERS freely rotating magnetic needle that aligns with the
earth's magnetic field
Joseph Henry and Michael Faraday - CORRECT ANSWERS 2 scientists who invented
devices that worked on the principle that elec energy could be converted to mechanical
electromagnetism - CORRECT ANSWERS the creation of a magnetic field by an electric
current
electromagnet - CORRECT ANSWERS current thru a coil of wire around an iron bar
forms a ____
LATEST UPDATED 2025/2026 A COMPLETE EXAM WITH 100%
CORRECT DETAILED ANSWERS GRADED A+ FOR PASS
ammeter - CORRECT ANSWERS instrument that measures electric current
torque - CORRECT ANSWERS what is produced by the loop's constant rotation?
# of loops in secondary coil (Ns) /
# of loops in primary coil (Np)
=
output voltage (Vs) /
input voltage (Vp) - CORRECT ANSWERS formula for calculating voltage on a
transformer
electromagnetic induction - CORRECT ANSWERS induction of an electric current in a
conductor by a changing magnetic field
wire loop - CORRECT ANSWERS receives electric current from commutator and
brushes; creates an electromagnet that seeks the opposite pole of the permanent magnet
electric - CORRECT ANSWERS the movement of electrons creates a ____ current
Faraday's law - CORRECT ANSWERS the induced voltage is proportional to the # of
loops and the rate at which the magnetic field changes
step down transformer - CORRECT ANSWERS what would you use to reduce the input
voltage?
galvanemeter - CORRECT ANSWERS coil wire that can turn between poles of a
permanent magnet to measure small electric currents
, PHYSICS UNIT 6 QUIZZES + PRACTICE TEST QUESTIONS AND ANSWERS
LATEST UPDATED 2025/2026 A COMPLETE EXAM WITH 100%
CORRECT DETAILED ANSWERS GRADED A+ FOR PASS
commutator - CORRECT ANSWERS causes the current within the wire loop to reverse
every half revolution
voltmeter - CORRECT ANSWERS measures voltage
stationary magnet - CORRECT ANSWERS its magnetic field attracts the magnetic field in
the wire loop, making the loop rotate
needle - CORRECT ANSWERS the galvanometer's ____ moves when it detects a current
AC current - CORRECT ANSWERS in the US, most _____ is supplied at 60 Hz
brushes - CORRECT ANSWERS connects current to commutator
compass - CORRECT ANSWERS freely rotating magnetic needle that aligns with the
earth's magnetic field
Joseph Henry and Michael Faraday - CORRECT ANSWERS 2 scientists who invented
devices that worked on the principle that elec energy could be converted to mechanical
electromagnetism - CORRECT ANSWERS the creation of a magnetic field by an electric
current
electromagnet - CORRECT ANSWERS current thru a coil of wire around an iron bar
forms a ____
