For the above graph choose the correct o

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Q.
Read the passage carefully and answer the following questions from (i) to (v)

The graph below is a V-I graph of a metallic circuit drawn at two different temperatures $T_{1} a n d T_{2}$

(i) For the above graph choose the correct option depicting which of the two temperatures is higher with justification.

Solution

1 $T_{2} > T_{1}$ ; Slope of V-I graph at $T_{2}$ is greater than slope at $T_{1}$ .

2 $T_{1} > T_{2}$ ; resistance increases with increase in temperature.

3 $T_{2} > T_{1}$ ; resistance increases with decrease in temperature.

4 $T_{1} > T_{2}$ ; Slope of V-I graph at $T_{1}$ is greater than slope at $T_{2}$ .

Ans.
(1)

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Solution

Q. Read the passage carefully and answer the following questions from (i) to (v) The graph below is a V-I graph of a metallic circuit drawn at two different temperatures T1 and T2 (i) For the above graph choose the correct option depicting which of the two temperatures is higher with justification.

1 T2>T1; Slope of V-I graph at T2 is greater than slope at T1.

2 T1 >T2; resistance increases with increase in temperature.

3 T2 >T1; resistance increases with decrease in temperature.

4 T1>T2; Slope of V-I graph at T1 is greater than slope at T2.

Ans. (1)

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1 $T_{2} > T_{1}$ ; Slope of V-I graph at $T_{2}$ is greater than slope at $T_{1}$ .

2 $T_{1} > T_{2}$ ; resistance increases with increase in temperature.

3 $T_{2} > T_{1}$ ; resistance increases with decrease in temperature.

4 $T_{1} > T_{2}$ ; Slope of V-I graph at $T_{1}$ is greater than slope at $T_{2}$ .

Ans.
(1)