Four sets of readings were taken for a coil kept at a constant temperature:
Set\;\; Current (A)\;\; Voltage (V)
1\;\;\; 0.20\;\;\;\;\; 1.98
2\;\;\; 0.40\;\;\;\;\; 3.95
3\;\;\; 0.60\;\;\;\;\; 5.89
4\;\;\; 0.80\;\;\;\;\; 7.87
a) For each set, calculate the resistance value.
b) Find the percentage variation between the highest and lowest resistance obtained.
c) A variation within 2 % is considered acceptable for an ohmic conductor. Does the coil satisfy this condition? State ‘Yes’ or ‘No’.
a. a) Calculate resistance for each set.
b. b) Find the percentage variation between highest and lowest resistance.
c. c) Decide if the coil is ohmic within 2 % tolerance (Yes/No).