Kelistrikan Quiz

What is Ohm's Law?

• Ohm's Law relates current, voltage, and resistance in a circuit.

• Ohm's Law states that the resistance in a circuit is directly proportional to the voltage.

• Ohm's Law is a mathematical equation used to calculate the power in a circuit.

• Ohm's Law only applies to circuits with direct current.

State Ohm's Law equation.

• V = I * R

• V = I - R

• V = I / R

• V = I + R

What is the unit of resistance?

• volt

• ampere

• watt

• ohm

Calculate the resistance of a circuit if the voltage is 12V and the current is 2A.

• 10 ohms

• 3 ohms

• 8 ohms

• 6 ohms

What is circuit analysis?

• The process of repairing electrical circuits using mathematical techniques.

• The process of manufacturing electrical circuits using mathematical techniques.

• The process of designing electrical circuits using mathematical techniques.

• The process of determining the behavior of electrical circuits using mathematical techniques.

State Kirchhoff's Current Law.

• The algebraic sum of currents entering and leaving a junction (or node) in an electrical circuit is zero.

• The algebraic sum of resistances entering and leaving a junction (or node) in an electrical circuit is zero.

• The algebraic sum of voltages entering and leaving a junction (or node) in an electrical circuit is zero.

• The algebraic sum of powers entering and leaving a junction (or node) in an electrical circuit is zero.

What is the purpose of electrical safety?

• To increase the efficiency of electrical systems.

• To promote energy conservation.

• To enhance the aesthetic appeal of electrical installations.

• To prevent electrical hazards and reduce the risk of accidents.

List three common electrical hazards.

• Electrical explosions, electrical shorts, and electrical surges.

• Electrical shock, electrical burns, and electrical fires.

What is electromagnetism?

• Study of electrical currents in the human body

• Study of the Earth's magnetic field

• Study of the interaction between light and matter

• Branch of physics dealing with the electromagnetic force

State Faraday's Law of Electromagnetic Induction.

• The electromotive force (EMF) induced in a circuit is directly proportional to the magnetic flux through the circuit.

• The electromotive force (EMF) induced in a circuit is directly proportional to the resistance of the circuit.

• The electromotive force (EMF) induced in a circuit is directly proportional to the rate of change of magnetic flux through the circuit.

• The electromotive force (EMF) induced in a circuit is inversely proportional to the rate of change of magnetic flux through the circuit.