Question

0.2 a current flow through a resistor of resistance 100 ohm for 2 minute calculate the heat generated

Answer 1

Answer:

300 Joule.

Explanation:

1. first of all you have to converts 2 min into seconds.
2. As, 1 min= 60 seconds than 2 min = 300 sec.
3. heat generated=H= I*2×R×t
4. H,=(0.2)*2 (100) (120).

Answer 2

480J of heat energy will be generated.

Given : 0.2A current flow through a resistor of resistance 100 ohms for 2 minutes.

To find : The amount of generated heat.

Solution :

We can simply solve this numerical problem by using the following process. (our goal is to calculate the amount of generated heat)

Here, we will be using the following mathematical formula.

H = I²RT

Here,

• H = Heat energy
• I = Current
• R = Resistance
• T = Time

Now, in this case,

• H = ? (unknown quantity)
• I = 0.2 A
• R = 100 Ohms
• T = 2 minutes = 2×60 = 120 seconds

So, by putting all the available data, in the above mentioned mathematical formula, we get :

H = (0.2)² × 100 × 120

H = 480 J

(This will be considered as the final result.)

Hence, 480J of heat energy will be generated.