Question

The resistance of 1 A ammeter is 0.018\,\Omega
. To convert it into 10 A ammeter, the shunt resistance required will be [MP PET 1982]
A) 0.18\,\Omega B) 0.0018\,\Omega C) 0.002\,\Omega D) 0.12\,\Omega

Answer 1

HOLA!!

ACCODRING TO OHM'S LAW

V = R×I = 0.018 ×1 = 0.018V

V /I = R

0.018/10 = 0.0018 Ohm

therefore B) 0.0018 ohm

HOPE MY ANSWER IS HELPFUL

Answer 2

Answer:

Explanation:

Resistance of 1 A ammeter= 0.018 ( Given)

Value of ammeter = 10A (Given)

As pe the ohm's law equation -

V = R×I

= 0.018 ×1

= 0.018V

Thus,

S = igG/ ( i-ig)

= 1 × 0.018 / 10-1

= 0.018/9

= 0.002

Therefore, to convert the resistance of ammeter into 10 A ammeter, the shunt resistance required is 0.002 ohms.