Question

(ii) If a 120 nicrome resistance, coil is added to 12 volt battery
and current flows 30 minutes than the calculate the amount
of heat produce ?​

Answer 1

Answer:

$\text{Current} = \dfrac{ \text{Potential DIfference}}{\text{Resistance}}$

According to the question,

• Resistance = 120 ohms
• Potential Difference = 12 V

⇒ Current = 12 V / 120 ohms

⇒ Current = 0.1 A

Now we know that, Heat is defined as:

⇒ Heat = I²RT

• I = Current Flowing
• R = Resistance
• T = Time of flow of current

Substituting the values we get,

⇒ Heat = 0.1 × 0.1 × 120 × 30 × 60 = 2160 J

Hence the amount of heat produced in the nichrome coil is 2160 J or 2.16 KJ.

Answer 2

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GIVEN:-

120 Nicrome

Added 12 Volt Battery.

Current Flows 30 Minutes.

TO FIND:-

Calculate the Amount of Heat Produce.

SOLUTION:-

Current = Potential DIfference/Resistance

According to the question,

Resistance = 120 ohms

Potential Difference = 12 V

⇒ Current = 12 V / 120 ohms

⇒ Current = 0.1 A

Now,

Heat is defined as:

⇒ Heat = I²RT ( Formula ).

Substituting the values we get,

⇒ Heat = 0.1 × 0.1 × 120 × 30 × 60

= 2160 J

• I Hope it's Helpful My Friend.