In the figure shown, a circuit contains two identical resistors with resistance R = 5 \Omega and an inductance with L =  2mH . An ideal battery of 15 V is connected in the circuit. What will be the current through the battery long after the switch is closed ?

  • Option 1)

     3 A

  • Option 2)

     7.5 A

  • Option 3)

    6 A

  • Option 4)

    5.5 A

Answers (1)
A admin

 

R.L Circuit Voltage -

V_{R}= IR

V_{L}= {I}X_{L}

- wherein

 

After a long time inductor will be ideal

R_{L}=0     

                                               

  I=\frac{2V}{R}=\frac{2\times 15}{5}

I=6A                                

 


Option 1)

 3 A

Option 2)

 7.5 A

Option 3)

6 A

Option 4)

5.5 A

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