Question

54. Consider the following statements 1. Ohm's law is applicable to all conductors. 2. The resistance of a pure metallic wire increases with increasing temperature. 3. The equivalent resistance of a set of resistors joined in parallel is less than the value of smallest resistor in the set. Which of the following statement is/are correct? (a) 1 and 2 (b) 1 and 3 (C) 1, 2 and 3 (d) 2 and 3​

Answer 1

Answer:

b) 1 and 3

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Answer 2

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The fourth vertex D of a parallelogram ABCD whose three vertices are A(-2,3), B(6,7) and C(8,3) is. Let the fourth vertex of parallelogram , D ≡(x4,y4)and L,M be the middle points of AC and BD , respectively. Hence , the fourth vertex of parallelogram is D ≡(x4,y4)≡(0,1).