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When a wire with a current is placed in a magnetic field,
magnetic field
galvanometer.
step-up transformer
Its speed can be slowed.
using a stronger ferromagnetic material for the core.
repeatedly reverses the flow of current through the armature.
energy.
electrical energy is transformed into mechanical energy.
What device increases voltage?
magnetic field
galvanometer.
step-up transformer
Its speed can be slowed.
using a stronger ferromagnetic material for the core.
repeatedly reverses the flow of current through the armature.
energy.
electrical energy is transformed into mechanical energy.
You can increase the strength of an electromagnet’s field by
magnetic field
galvanometer.
step-up transformer
Its speed can be slowed.
using a stronger ferromagnetic material for the core.
repeatedly reverses the flow of current through the armature.
energy.
electrical energy is transformed into mechanical energy.
What is produced when there is a current in the primary coil of a transformer?
magnetic field
galvanometer.
step-up transformer
Its speed can be slowed.
using a stronger ferromagnetic material for the core.
repeatedly reverses the flow of current through the armature.
energy.
electrical energy is transformed into mechanical energy.
In an electric motor, a commutator
magnetic field
galvanometer.
step-up transformer
Its speed can be slowed.
using a stronger ferromagnetic material for the core.
repeatedly reverses the flow of current through the armature.
energy.
electrical energy is transformed into mechanical energy.
A device used to measure small currents is a(n)
magnetic field
galvanometer.
step-up transformer
Its speed can be slowed.
using a stronger ferromagnetic material for the core.
repeatedly reverses the flow of current through the armature.
energy.
electrical energy is transformed into mechanical energy.
The ability to move an object over a distance is called
magnetic field
galvanometer.
step-up transformer
Its speed can be slowed.
using a stronger ferromagnetic material for the core.
repeatedly reverses the flow of current through the armature.
energy.
electrical energy is transformed into mechanical energy.
Which is NOT a characteristic of a magnetic field produced by a current?
magnetic field
galvanometer.
step-up transformer
Its speed can be slowed.
using a stronger ferromagnetic material for the core.
repeatedly reverses the flow of current through the armature.
energy.
electrical energy is transformed into mechanical energy.
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