Module 2: Electrical & Magnetic Phenomena

These flashcards cover key concepts of electrical and magnetic phenomena from Module 2.

Magnetism is a __ force that causes certain materials to attract or repel each other.

Natural

The __ is an invisible area around a magnet or a current-carrying conductor where magnetic forces are exerted.

Magnetic field

Electromagnetic interference (EMI) can cause disruption in __, navigation, and sensor systems.

Communication

The __ is a measure of the amount of magnetic field lines passing through a given area.

Magnetic flux

Faraday's Law states that the voltage induced across a coil equals the number of turns in the coil times the __ rate of change.

Magnetic flux

The __ produces a magnetic field that tries to stop the current from changing suddenly.

Inductor

Capacitance is measured in __ and indicates how much electric charge a capacitor can store.

Farads

When capacitors are connected in __, the total capacitance is less than the smallest individual capacitance value.

Series

The __ is used to directly relate inductance, capacitance, and resistance in an RL circuit.

RL time constant

The __ works by quickly turning on and off a transistor switch to control power output.

Switching power supply