Understanding RL Circuits

What does 'RL' stand for in RL circuits?

• Resistor and Lamp

• Resistor and Load

• Resistor and Inductor

• Resistor and Light

In a purely resistive circuit, what happens to the current and voltage when the switch is closed?

• They reach their maximum values

• They remain constant

• They oscillate

• They decrease to zero

What is the role of an inductor in an RL circuit?

• To convert AC to DC

• To decrease resistance

• To store energy in a magnetic field

• To increase voltage

What happens to the voltage across the inductor when the current changes?

• It remains constant

• It induces a voltage to oppose the change

• It decreases linearly

• It increases linearly

During the charging of an inductor, how does the current change over time?

• It oscillates

• It increases exponentially

• It remains constant

• It decreases exponentially

What is the relationship between the voltage across the resistor and the inductor during charging?

• They are inversely proportional

• They are directly proportional

• They are unrelated

• They are equal

What happens to the energy stored in the inductor when the circuit is opened?

• It remains in the inductor

• It is released through the resistor

• It is stored indefinitely

• It is lost as heat

How does the current behave when the inductor discharges?

• It increases exponentially

• It oscillates

• It decreases exponentially

• It remains constant

What is the effect of the inductor on the current when discharging?

• It delays the decrease

• It has no effect

• It reverses the current

• It accelerates the decrease

What is the final state of the energy stored in the inductor after discharging?

• It is lost as kinetic energy

• It is stored as potential energy

• It is converted to light and heat

• It is converted to sound