Engineering Topics

What is Ohm's Law?

• Ohm's Law is V = R / I

• Ohm's Law is V = I / R

• Ohm's Law is P = V * I

• Ohm's Law is V = I * R, where V is the voltage, I is the current, and R is the resistance.

Explain the difference between AC and DC current.

• AC current flows in one direction continuously, while DC current changes direction periodically.

• AC current changes direction periodically, while DC current flows in one direction continuously.

• DC current changes direction periodically, while AC current flows in one direction continuously.

• AC current flows in both directions, while DC current flows in one direction.

What is a resistor and how does it work?

• A resistor is a device that amplifies electrical current by converting it into light energy.

• A resistor is an electrical component that resists the flow of electrical current by converting electrical energy into heat.

• A resistor is a component that increases the flow of electrical current by storing energy.

• A resistor is a material that blocks electrical current completely.

Define voltage and current in electrical circuits.

• Voltage is the potential difference between two points in a circuit, measured in volts. Current is the flow of electric charge through a conductor, measured in amperes.

• Voltage is the resistance in a circuit, measured in ohms.

• Current is the potential difference between two points in a circuit, measured in amperes.

• Voltage is the flow of electric charge through a conductor, measured in volts.

What is the purpose of a diode in an electronic circuit?

• To store excess charge in capacitors

• To amplify signals in both directions

• To regulate voltage in AC circuits

• To allow current flow in one direction while blocking it in the opposite direction.

Describe the function of a capacitor.

• A capacitor functions by storing electrical energy.

• A capacitor functions by converting mechanical energy.

• A capacitor functions by emitting light energy.

• A capacitor functions by generating heat energy.

What is the role of a transistor in electronic devices?

• Amplifies the signal strength

• Regulates the voltage in circuits

• Stores data in memory chips

• Controls the flow of electrical current

Explain the concept of series and parallel circuits.

• Series circuits have higher resistance than parallel circuits.

• Series circuits have multiple paths for current flow.

• Parallel circuits have only one path for current flow.

• Series circuits have only one path for current flow, while parallel circuits have multiple paths for current flow.

What is the significance of Kirchhoff's Laws in electrical engineering?

• Kirchhoff's Laws have no practical use in the field of electrical engineering.

• Kirchhoff's Laws are used for designing software applications.

• Kirchhoff's Laws are essential for analyzing complex electrical circuits and determining unknown values of currents and voltages within the circuit.

• Kirchhoff's Laws are only applicable to mechanical engineering.

How does a transformer work in power distribution?

• A transformer transfers electrical energy between circuits through electromagnetic induction.

• A transformer works by storing energy in batteries

• A transformer generates electricity from scratch

• A transformer converts mechanical energy into electrical energy