Question

The V vs I graph is plotted for a nichrome wire at two different temperatures 50^0C and 150^0C and slopes of the graphs are S1 and S2 respectively, when V is taken along Y-axis. The relation between S1 and S2 will be as follows: S1 = S2 S1 > S2 S1 < S2 3S1 = S2

Answer 1

✪ᴀɴsᴡᴇʀ✪

• $S_1 < S_2$

★ᴇxᴘʟᴀɪɴᴀᴛɪᴏɴ★

• Slope of V-I graph represents R, resistance.
• As temperature increases, resistance increases(in metals).

So,

$\to R(50⁰C) < R(150⁰C)$

$\to S_1 < S_2$