Question

What is the inductance of a coil if the coil produces an emt of 2.60 V when the current in it changes from -29.0 mA to +33.0 mA in 17.0 ms. Express your answer using three significant figures.

Answer 1

0.712 mH

Step-by-step explanation:

The emf produced by the coil = 2.6 V

Current is changes from -29 mA to 33 mA so change in current di =33-(-29)=62 mA

The time duration that is dt=17 ms

The emf is given by
`e=L(di)/(dt)`

`2.6=L(62)/(17* 10^(-3))`

`L=0.712* 10^(-3)H=0.712mH`

So the value of inductance will be 0.712 mH