____ allow current to flow in one direction only. They are used to convert alternating current (____) to direct current (____), to protect circuits from ____, and to generate other waveforms. Diodes have a forward ____, which is the minimum voltage that must be applied to the diode for current to flow in the forward direction. They also have a reverse ____, which is the current that flows through the diode in the reverse direction. ____ transfer electrical energy from one circuit to another. They are used to increase or ____ the voltage of an ____ signal, to provide ____ between circuits, and to match impedances between circuit. Transformers have a voltage ____, which is the ratio of the output voltage to the input ____. They also have a current ratio, which is the ratio of the output current to the input current. ____ resist the flow of electrical ____. They are measured in ____ (Ω). The higher the ____, the more the resistor will resist the flow of current. Resistors have a power rating, which is the maximum amount of ____ they can ____ without overheating. They also have a ____, which is the amount of variation in their resistance that is allowed. ____ store electrical energy in an electric field. They are measured in ____ (F). The larger the capacitance, the more ____ the capacitor can store. Capacitors: Capacitors have a ____ rating, which is the maximum voltage they can withstand without ____ down. They also have a tolerance, which is the amount of variation in their capacitance that is allowed. ____ convert ____ energy into ____ energy. They are used to ____ a wide variety of devices, including ____, pumps, and machinery. Motors: Motors have a speed, which is the number of ____ per minute (RPM) that the motor ____ rotates. They also have a ____, which is the force that the motor can produce.

Unit 1.7

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