Question

The sensitivity of a milliammeter of range 0 to 50 mA is x `"div"/"mA"`. If it is converted into an ammeter of range 500 mA by using a suitable shunt then the sensitivity will be ________.

विकल्प

• `x/10 "div"/"mA"`

• `x/5 "div"/"mA"`

• `x/15 "div"/"mA"`

• `x/20 "div"/"mA"`

Answer 1

The sensitivity of a milliammeter of range 0 to 50 mA is x `"div"/"mA"`. If it is converted into an ammeter of range 500 mA by using a suitable shunt then the sensitivity will be `underline(x/10 "div"/"mA")`.

Explanation:

Current is increased by 10 times

For the same scale, the sensitivity will be `x/10` div/mA