Correct Answer - Option 2 : Joule's Law
Joule's law of heating :
- This law states that when the current (I) passes through a conductor of resistance (R) for time (t) then heat produced by the conductor is equal to the product of the square of the current, the resistance, and time.
H = I2Rt joules
H = heat produced
I = current
R = Resistance
t = time
The unit is Joules.
Newton's Laws.
-
Newton's laws of motion relate an object's motion to the forces acting on it.
- He gave three laws of motion -
- The first law states that an object will not change its motion unless an external force acts on it.
- The second law states that force experienced is proportional to its mass times acceleration.
- The Third law of motion states that every action has an equal and opposite reaction.
Faraday's Law of Induction
- It states that induced voltage in a circuit is proportional to the rate of change over time of magnetic flex through that circuit.
Ohm's law:
- The relationship between the potential difference across a conductor and current flowing through it is determined by Ohm's law.
- Ohm's law states that potential difference across a conductor is directly proportional to the current flowing through it.
V α I
i.e. V = IR
V = Potentioal difference
I = Current
R = Resistance. (constant)