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To study the dependence of current (I) on the potential difference (V) across a resistor, the following observations were made by four students A, B, C and D. Student Reading No. 1 Reading No. 2 Reading No. 3 A V = 0.5 V I = 0.1 A V = 1.0 V I = 0.2 A V = 1.5 V I = 0.3 A B V = 0.8 V I = 0.4 A V = 1.6 V I = 0.8 A V = 2.4 V I = 1.2 A C V = 1.0 V I = 0.5 A V = 1.2 V I = 1.4 A V = 1.4 V I = 1.0 A D V = 2.4 V I = 0.8 A V = 2.7 V I = 0.9 A V = 3.0 V I = 1.0 A The teacher found that one of the students has made wrong observations. The student who made the mistake is:(1) A(2) B(3) C(4) D

Answer» To study the dependence of current (I) on the potential difference (V) across a resistor, the following observations were made by four students A, B, C and D.



































Student Reading No. 1 Reading No. 2 Reading No. 3
A V = 0.5 V

I = 0.1 A		 V = 1.0 V

I = 0.2 A		 V = 1.5 V

I = 0.3 A
B V = 0.8 V

I = 0.4 A		 V = 1.6 V

I = 0.8 A		 V = 2.4 V

I = 1.2 A
C V = 1.0 V

I = 0.5 A		 V = 1.2 V

I = 1.4 A		 V = 1.4 V

I = 1.0 A
D V = 2.4 V

I = 0.8 A		 V = 2.7 V

I = 0.9 A		 V = 3.0 V

I = 1.0 A



The teacher found that one of the students has made wrong observations. The student who made the mistake is:

(1) A

(2) B

(3) C

(4) D


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