Question

How much will be the heat developed if 0.2 A current flows
through a conductor of resistance 200 2 for 5 minute?
H=IRt
R = 200 S2
= (0.2)2 200x300
I = 0.2 A
= 2400 J
t = 5 x 60 s
= 300 s
: Heat generated
generated = 2400 J
If 4.2 J is one calorie then H = ........ calorie
H = l’Rt is used to find out the heat developed when current
flows through a conductor. Let's try to write down the equation
in some other forms as well.
According to Ohm's Law, I = V/R. If we substitute this in the equation
according to Joule's Law H = 1²Rt, we get
H = (V/R) Rt
2
H=
Rt
R​

Answer 1

Answer:

toooooooo lengthy question