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In the figure there is a DC voltage regu...

In the figure there is a DC voltage regulator circuit, with a Zener breakdown voltage = 6V.If the unregulated input voltage varies between 10V to 16V,then what is the maximum Zener current?

A

1.5mA

B

7.5 mA

C

3.5mA

D

2.5mA

Text Solution

Verified by Experts

The correct Answer is:
C

`i_1=6/4 =1.5 mA`
Maximum current will be obtained for battery voltage 16V
`i=(16-6)/2 = 5mA`
`i_z` (max) `=5 -1.5 =3.5 mA`
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