Question

Please solve it ......

Answer 1

First find out the least count in both ammeter and voltmeter

Answer 2

Step 1.. First we will find the P.D and Current

---Ammeter

Least count =10mA

Reading=18×10=180mA=180×${10}^{-3}$

---Voltmeter
Least count=0.1V

Reading=9×0.1=0.9


Step 2 Now we will find resistance by ohms law
V=IR
R=V/I
R=0.9/180×${10}^{-3}$
R=5 ohms