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Question

Electricity and Magnetism Question on Inductance

For a circuit shown below, when switch is closed, the current I2I_2(s) is (assume i(0+)=0)i(0^+)=0)

A

I2(s)I_2(s) = 1s+2.5\frac 1{s+2.5}

B

I2(s)I_2(s)= 1s(s+2.5)\frac 1{s(s+2.5) }

C

I2(s)I_2(s) = ss+2.5\frac {s}{s+2.5}

D

I2(s)I_2(s)= s+2.5s(s+5)\frac {s+2.5}{s(s+5)}

Answer

I2(s)I_2(s)= 1s(s+2.5)\frac 1{s(s+2.5) }

Explanation

Solution

The Correct answer is option (B) : I2(s)I_2(s)= 1s(s+2.5)\frac 1{s(s+2.5) }