4. Find a) the rate of conversion of chemical energy to electrical energy in the battery...
5. (a) Find the rate of conversion of chemical energy to electrical energy in the battery power of emf). 1.0 12.0 v ww 5.02 (b) Find the rate of dissipation of electrical energy in the battery. (c) Find the rate of dissipation of electrical energy in the external resistor.
05.) What is the current in the circuit? At what rate is chemical energy being converted into electrical energy in the battery. At what rate is energy being converted into heat in the battery? At what rate is electrical energy being converted into heat by the load resistor? 13V unt (r=100 R mm 5,5r
The turbines ina hydroelectric plant kg/s. Assuming 74% efficiency for conversion of potential to electrical energy, what is the electric power generated? fed by water falling from a 140 m height at a rate of 2.1 are The turbines ina hydroelectric plant kg/s. Assuming 74% efficiency for conversion of potential to electrical energy, what is the electric power generated? fed by water falling from a 140 m height at a rate of 2.1 are
When electrical energy is used to turn on a light bulb, the conversion from electrical energy to light energy is not 100% efficient. This loss of usable energy can be explained by (a) a destruction of energy (b) the second law of thermodynamics (c) the first law of thermodynamics (d) a conversion to potential energy (e) none of the above
37. A continuous flow water heater (geyser) has an electrical power rating 2 kW and efficienty of conversion of electrical power into heat-80%. If water is flowing through the device at the rate of 100 cc/sec, and the inlet temperature is 10°C, the outlet temperature will be (1) 12.2°C (3) 20°C (2) 13.8°C (4) 16.5°C
1) An electric heater consumes electrical energy at a rate of P = 150 W when connected to a battery with an emf of 120 V. (a) What is the current in the heater? A (b) If you wish to increase the power consumption to 300 W, by what factor should the heater resistance be changed? Rfinal Rinitial = (c) What is the maximum power that could be drawn if the circuit contained a circuit breaker that limited the current...
Q.8: An electrical power plant operates on the basis of thermal energy generated in a pressurized water reactor. The electrical power output of the plant is 1 GW, and its efficiency is 30% (a) Find the total power generated by the reactor. (b) How much power is discharged to the environment as waste heat? (c) Calculate the rate of fission events in the reactor core (Let the energy produced per fission event be 200MeV) (d) Calculate the mass of 235U...
The capacity of a storage battery, such as those used in automobile electrical systems, is rated in ampere-hours (A⋅h). A 50 A⋅h battery can supply a current of 50 A for 1.0 h, or 25 A for 2.0 h, and so on. 1) What total energy can be supplied by a 12 V , 50 A⋅h battery if its internal resistance is negligible? Express your answer using two significant figures. 2) What volume (in liters) of gasoline has a total...
A stretched spring must have which 1. potential energy. 2. kinetic energy. 3. chemical energy. 4. electrical energy.
What are the properties of energy? Give example of electrical, mechanical, chemical, thermal and electromagnetic energies. Explain Faraday’s law of electromagnetic induction. Does the transformer draw any current when its secondary is open? Can 50-Hz Transformers Be Operated at 60 Hz & Vice versa? Suppose that cost of electrical energy is $0.32 per kilowatt hour and that your electrical bill for 30 days is $180. Assume that the power delivered is constant over the entire 30 days. (a) What is...