Question

3. State Joules law of heating with formula.


4. State Ohm’s law.


pls
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Answer 1

Answer:

(3) answer:-A quantitative form of Joule's law is that the heat evolved per second, or the electric power loss, P, equals the current I squared times the resistance R, or P = I²R. The power P has units of watts, or joules per second, when the current is expressed in amperes and the resistance in ohms.

(4) answer:-Ohm's law states that the electrical current

• flowing in an circuit is proportional to the voltage
• and inversely proportional to the resistance
• Therefore, if the voltage is increased, the current will increase provided the resistance of the circuit does not change.

Explanation:

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Answer 2

Answer:

Explanation:

3. joule's law of heating states that the heat generated across the ends of a wire is equal to (i) square of current flowing through the wire (ii) resistance of the wire (iii) time taken for the current to flow through it. H=I^2RT

4. the Potential difference across the ends of a given metallic wire is directly proportional to current flowing through it provided the temperature remains the same is defined as Ohm's law .V=IR