«««< HEAD

======= ####87. 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

c3eec34ec6b1fad69db54a20ad4b2dca40c2aa54 (a) $10^{\circ} C$

(b) $16^{\circ} C$

(d) $12^{\circ} C$

[1998]

Show Answer

Answer:

Correct Answer: 87. (c)

Solution:

(c) Since $H \propto I^{2}$ , doubling the current will produce 4 times heat. Hence, the rise in temperature will also be 4 times i.e., rise in temperature $= 4 \times 5 = 20^{\circ} C$ .

Play Store

App Store

Ask SATHEE

Welcome to SATHEE !
Select from 'Menu' to explore our services, or ask SATHEE to get started. Let's embark on this journey of growth together! 🌐📚🚀🎓

I'm relatively new and can sometimes make mistakes.
If you notice any error, such as an incorrect solution, please use the thumbs down icon to aid my learning.
To begin your journey now, click on "I understand".

Current Electricity - Result Question 82

87. A 5∘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

«««< HEAD

Answer:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

Menu

87. 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