Question

calculate the amount of heal energy produced 1 a current flows through 1ohm resistance wire for 1 hours
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Answer 1

Given

1 A current flows through 1ohm resistance wire for 1 hours

To Find

Calculate the amount of heat energy

Solution

According to Jolues law of heating

(★) This law can be stated as the amount of heat produced in a conductor is

a) directly proportional to the square of current flowing through it

b) directly proportional to the resistance of the conductor

c) directly proportional to the time

Now

• Current (I) = 1A
• Resistance (R) = 1ohm
• Time (t) = 1hrs = 60*60 = 3600sec
• Heat produced (H) = ?

→ H = I²Rt

→ H = (1)² × 1 × 3600

→ H = 3600 Joules

Hence, the amount of heat produced is 3600 Joules

Answer 2

Given

1 A current flows through 1ohm resistance wire for 1 hours

To Find

Calculate the amount of heat energy

Solution

According to Jolues law of heating

(★) This law can be stated as the amount of heat produced in a conductor is

a) directly proportional to the square of current flowing through it

b) directly proportional to the resistance of the conductor

c) directly proportional to the time

Now

Current (I) = 1A

Resistance (R) = 1ohm

Time (t) = 1hrs = 60*60 = 3600sec

Heat produced (H) = ?

→ H = I²Rt

→ H = (1)² × 1 × 3600

→ H = 3600 Joules

Hence, the amount of heat produced is 3600 Joules