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1. the filament of electric bulb is made up of tungsten as it has melting point of 3380 degree & it cannot be oxidised
2. electric fuse As a safely device which works on heating effect of electric current. the fuse wire is made up of copper, lead & tin. if a current larger than the specified value close to the circuit, the temperature of fuse wire increase. this melts the fuse wire & breaks the circuit.
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Suppose you want to heat 40g of water by 20c how many joules of heat are required?
334.8 Joules
What is the formula of Charles law?
An experimental gas law is the Charles Law. The formula used is original volume/original temperature= new volume/new temperature. The law describes expansion of gases with heat.
What is the standard unit of heat?
Standard units of heat is Joules.
What is the change in internal energy if 20 joules of heat is released from a system and the system does 50 joules of work on the surroundings?
-70 Joules
How many amps in 200 joules?
200 joules of any other type of energy can be converted to 200 joules of heat.
What is the heat formula?
the formula for heat is: joules= change in temp* mass* cpby: Professor Thompson
How much heat is generated by 1700 joules of work?
If all 1700 Joules of work get converted into heat, then, of course, you get 1700 Joules of heat.
What unit of measurement is used to record heat transfer?
Heat transfer is measured in Joules. At times, teachers look for calories, so the conversion for Calories to Joules is 1 calorie = 4.184 joules. The formula used for heat transfer is q = m(T)C .... q is amount of heat transferred, m is mass, T is the change in temperature, C is the specific heat.
What is the formula for finding joules?
There isn't a formula for finding joules. It is a way for finding a force or giving an example.
What is the heat of solution for barium chloride in joules?
103 joules
Suppose you want to heat 40g of water by 20c how many joules of heat are required?
334.8 Joules
What is the measurement for specific heat?
The unit for specific heat is Joules/g-Kelvin or it can be Joules/g-Celsius J= Joules g= Grams C= Celsius
What is thermal energy measured in?
Heat is measured in joules.
What is efficiency of lawn mower's engine when the heat input is 1000 joules and the waste heat is 750 joules?
25 percent
What is the efficiency of a street cleaner's engine when the heat input is 200000 joules and the heat waste is 150000 joules?
25 percent
What is the efficiency of lawn mower's engine when the heat input is 1000 joules and the waste heat is 750 joules?
25 percent
What is the efficiency of a car's engine when the heat input is 100000 joules and the waste heat is 75000 joules?
25%
