EP lab - introduction - pre-viva 1

What are the two types of electrical signals?

• High Current and Low Current

• Alternating Current (AC) and Direct Current (DC)

• Voltage and Resistance

• Series and Parallel

How is the rate of reversal of alternating current measured?

• In Volts

• In Amps

• In Ohms

• In Hertz

What happens in a series-connected circuit?

• The same voltage is applied to all loads.

• The same current flows through all loads.

• The current is divided among all loads.

• Each load has a different resistance.

What do resistors do in a circuit?

• Store electricity

• Allow electricity to flow in one direction

• Add resistance and reduce current flow

• Amplify current

What is the primary function of a capacitor?

• To amplify current

• To store and discharge electricity

• To resist current flow

• To measure voltage

Which type of component only allows current to flow in one direction?

• Resistor

• Capacitor

• Diode

• Transistor

What do NPN and PNP represent in transistors?

• Types of circuits

• Types of voltage

• Types of transistor polarity

• Types of capacitors

What is an integrated circuit?

• A large circuit made from discrete components

• A miniaturized circuit on a single chip

• A type of resistor

• A type of battery

What is the purpose of a potentiometer?

• To store energy

• To change resistance in a circuit

• To amplify signals

• To allow current to flow in one direction

What is the function of a switch in a circuit?

• To store power

• To create a break in the circuit

• To measure current

• To increase voltage