What should the length be

Reference no: EM13709196

Solve the all parts of given question:

Question: A heating element is made by maintaining a potential difference of 80.0 V across the length of a Nichrome wire that has a 2.94 × 10^-6 m² cross section. Nichrome has a resistivity of 5.00 × 10^-6 Ω•m.

Part A: If the element dissipates 7870 W, what is its length?

Part B: If 103 V is used to obtain the same dissipation rate, what should the length be?

Please show all work and steps I am really trying to learn this for my exam.

Reference no: EM13709196

Questions Cloud

What is the molecular mass : Most of earth's atmosphere is the gas nitrogen (N2molecules). What is the molecular mass, in kilograms, of the N2gas? Remember that N has a mass of 14 u, so N2has a mass of 28 u

Find what the pressure exerted by the gas on the wall : A sealed container has a volume V = 0.008 cubic meters and 3 times Avagodro's number of molecules at a temperature T = 20 degrees Celsius. What is the pressure P exerted by the gas on the wall of the container

Kinetic energy of the air entering the engine compressor : The diffuser in a jet engine is designed to decrease the kinetic energy of the air entering the engine compressor without any work or heat interactions. Calculate the velocity at the exit of a diffuser when air at 100kPa and 14C enters it with a velo..

What is the resistance of the cable : An electrical cable consists of 167 strands of fine wire, each having 2.80 µohm resistances. What is the resistance of the cable

What should the length be : A heating element is made by maintaining a potential difference of 80.0 V across the length of a Nichrome wire that has a 2.94 × 10-6 m2 cross section. what should the length be

How much work you can do per cycle : How fast you can crank up the clock and how much work you can do per cycle

Find by what percentage will its heat output drop : A 460 W heating unit is designed to operate with an applied potential difference of 116 V. By what percentage will its heat output drop if the applied potential difference drops to 112 V

How much total charge is on the positive plate : Large parallel conducting plates, each with area 4.0 m2, are separated by 0.06 m. The plates are connected to the terminals of a 12-volt battery. How much total charge is on the positive plate

What is the magnitude of the current density : A cylindrical resistor of radius 3.1 mm and length 1.3 cm is made of material that has a resistivity of 5.9 x 10-5 Ω•m. What is the magnitude of the current density

User Account

All Pages