Table of Contents
- 1 Why heat is proportional to square of current?
- 2 Why heat is directly proportional to current?
- 3 What is the relationship between the amount of electric current passed and the heat produced?
- 4 What is the meaning of heating effect of electric current?
- 5 Under what condition is the heat produced in a conductor I is directly proportional to the resistance II is inversely proportional to the resistance?
- 6 How and on what factors does the heat produced in a conductor depends?
- 7 What is the relation between heat energy produced in a conductor when a potential difference V is applied across its terminals and a current i flows through it for the time T?
Why heat is proportional to square of current?
This is exactly as you have stated, the heat is directly proportional to the resistance and the square of the current. Because the current term is squared in the power equation, the heat given off by the circuit is more highly dependent on the current flowing through it than the resistance.
Why heat is directly proportional to current?
When these appliances are in connection with the supply of electricity they become hot but wires remain cold. They consist nichrome which has high resistivity and hence high resistance. Heat produced is directly proportional to the resistance of material through which the current flows.
What is directly proportional to heat?
Resistance is directly proportional to heat. From the above equation, we know that resistance is directly proportional to heat.
What is the relationship between the amount of electric current passed and the heat produced?
Answer: according to joules law of heating effect the amount of electric current passing through a conductor is directly proportional to the amount of heat generated. if the electric current passing through the conductor is more then the amount of heat generated will also be more.
What is the meaning of heating effect of electric current?
When an electric current passes through a conductor (like a high resistance wire) the conductor becomes hot after some time and produces heat. This is called heating effect of Electric Current. Example 1. A bulb becomes hot after its use for some time.This is because of heating effect of electric current.
Is heat produced directly proportional to resistance?
(i) Heat produced in the circuit is directly proprotional to the resistance if a constant current is flowing through a circuit, because H=I2RtorH∝R. It is so in series combination of resistors.
Under what condition is the heat produced in a conductor I is directly proportional to the resistance II is inversely proportional to the resistance?
As H = I2 RT, therefore heat produced is directly proportional to the resistance. When the resistance is connected in parallel in the circuit, the voltage across the resistor remains the same. As H = V2 T/R, therefore the heat produced is inversely proportional to the resistance.
How and on what factors does the heat produced in a conductor depends?
The heat produced in a wire depends on the current flowing in the wire and the resistance of the wire.
How is heat directly proportional to mass?
To double the temperature change of a mass m, you need to add twice the heat. (b) The amount of heat transferred is also directly proportional to the mass. To cause an equivalent temperature change in a doubled mass, you need to add twice the heat.
What is the relation between heat energy produced in a conductor when a potential difference V is applied across its terminals and a current i flows through it for the time T?
Write relation between heat energy produced in a conductor when a potential difference V is applied across its terminals and a current I flows through it for time t. H = V I t.