Electrical Engineering (EE) Exam  >  Electrical Engineering (EE) Questions  >  A series RL circuit having a resistance of 20... Start Learning for Free
A series RL circuit having a resistance of 20 Ω and inductance of 8 H is connected to a DC voltage source of 120 V at t = 0. The current in the circuit at t = 0.6 sec is
  • a)
    0 A
  • b)
    2.33 A
  • c)
    4.66 A
  • d)
    1 A
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
A series RL circuit having a resistance of 20 Ω and inductance o...
Concept:
The Series R-L circuit with DC source is shown below as.
Formula:
The  voltage across the resistor is 
VR = i.R
The voltage across the Inductor is 
The formula for alternating current passes through the R-L circuit is
Calculation:
Free Test
Community Answer
A series RL circuit having a resistance of 20 Ω and inductance o...

Calculation of Current in the Circuit at t = 0.6 sec

Given Data:
Resistance (R) = 20 Ω
Inductance (L) = 8 H
DC voltage source = 120 V
Time (t) = 0.6 sec

Formula Used:
The current in a series RL circuit can be calculated using the formula:
i(t) = (V/R) * (1 - e^(-Rt/L))

Calculation:
Substitute the given values into the formula:
i(0.6) = (120/20) * (1 - e^(-20*0.6/8))
i(0.6) = 6 * (1 - e^(-1.5))

Now, calculate the value of e^(-1.5):
e^(-1.5) ≈ 0.2231

Substitute the value back into the formula:
i(0.6) = 6 * (1 - 0.2231)
i(0.6) = 6 * 0.7769
i(0.6) ≈ 4.66 A

Therefore, the current in the circuit at t = 0.6 sec is approximately 4.66 A, which corresponds to option 'C'.
Explore Courses for Electrical Engineering (EE) exam

Top Courses for Electrical Engineering (EE)

Question Description
A series RL circuit having a resistance of 20 Ω and inductance of 8 H is connected to a DC voltage source of 120 V at t = 0. The current in the circuit at t = 0.6 sec isa)0 Ab)2.33 Ac)4.66 Ad)1 ACorrect answer is option 'C'. Can you explain this answer? for Electrical Engineering (EE) 2025 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about A series RL circuit having a resistance of 20 Ω and inductance of 8 H is connected to a DC voltage source of 120 V at t = 0. The current in the circuit at t = 0.6 sec isa)0 Ab)2.33 Ac)4.66 Ad)1 ACorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A series RL circuit having a resistance of 20 Ω and inductance of 8 H is connected to a DC voltage source of 120 V at t = 0. The current in the circuit at t = 0.6 sec isa)0 Ab)2.33 Ac)4.66 Ad)1 ACorrect answer is option 'C'. Can you explain this answer?.
Solutions for A series RL circuit having a resistance of 20 Ω and inductance of 8 H is connected to a DC voltage source of 120 V at t = 0. The current in the circuit at t = 0.6 sec isa)0 Ab)2.33 Ac)4.66 Ad)1 ACorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Electrical Engineering (EE). Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free.
Here you can find the meaning of A series RL circuit having a resistance of 20 Ω and inductance of 8 H is connected to a DC voltage source of 120 V at t = 0. The current in the circuit at t = 0.6 sec isa)0 Ab)2.33 Ac)4.66 Ad)1 ACorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A series RL circuit having a resistance of 20 Ω and inductance of 8 H is connected to a DC voltage source of 120 V at t = 0. The current in the circuit at t = 0.6 sec isa)0 Ab)2.33 Ac)4.66 Ad)1 ACorrect answer is option 'C'. Can you explain this answer?, a detailed solution for A series RL circuit having a resistance of 20 Ω and inductance of 8 H is connected to a DC voltage source of 120 V at t = 0. The current in the circuit at t = 0.6 sec isa)0 Ab)2.33 Ac)4.66 Ad)1 ACorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of A series RL circuit having a resistance of 20 Ω and inductance of 8 H is connected to a DC voltage source of 120 V at t = 0. The current in the circuit at t = 0.6 sec isa)0 Ab)2.33 Ac)4.66 Ad)1 ACorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A series RL circuit having a resistance of 20 Ω and inductance of 8 H is connected to a DC voltage source of 120 V at t = 0. The current in the circuit at t = 0.6 sec isa)0 Ab)2.33 Ac)4.66 Ad)1 ACorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice Electrical Engineering (EE) tests.
Explore Courses for Electrical Engineering (EE) exam

Top Courses for Electrical Engineering (EE)

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev