Correct option is A
The correct answer is (a) 0.32 J.
• To calculate the heat produced in the resistor, we can use Joule's Law, which is given by the formula:
H=I2⋅R⋅t
Where:
- H is the heat produced in joules (J)
- I is the current in amperes (A)
- R is the resistance in ohms (Ω)
ttt is the time in seconds (s)
• Given:
I=0.4 A
- R=2 Ω
- t=1 s
• Now, substituting the values into the formula:
H=(0.4)2⋅2⋅1=0.16⋅2=0.32 J
• This calculation shows that the heat produced in the resistor in 1 second is 0.32 J.
Information Booster:
- Joule’s Law: It states that the heat produced in a conductor is directly proportional to the square of the current, the resistance, and the time for which the current flows.
- Current (I): The flow of electric charge, measured in amperes (A).
- Resistance (R): The opposition to the flow of electric current, measured in ohms (Ω).
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