Current Electricity Charging Discharging Of Capacitors Question 500
Question: A $ 5{}^\circ C $ rise in temperature is observed in a conductor by passing a current. When the current is doubled the rise in temperature will be approximately
[CBSE PMT 1998]
Options:
A) $ 16{}^\circ C $
B) $ 10{}^\circ C $
C) $ 20{}^\circ C $
D) $ 12{}^\circ C $
Show Answer
Answer:
Correct Answer: C
Solution:
Since $ H\propto i^{2}, $ so on doubling the current, the heat produced and hence the rise in temperature becomes four times.
BETA
