Evaluate the advantages and disadvantages of transmitting power by AC and DC and the implications for electricity supply in industrial and domestic contexts. In the National Grid, electrical energy is transmitted to towns and cities and rural areas across the country

You decide to “go green" and use an exercise bike to power your home appliances. Assume that your exercise bike is rigged to generate electrical power with 60% efficiency. In other words, only 6/10 of the power you develop can be used to store electrical energy for later use. Consider your 3500-Watt central AC unit. You need to run this unit for 4 hours each day during the summer. If you can develop a sustained power of 300 Watts on your exercise bike, how long would you have to work out just to keep the AC running on a summer day?

An AC voltage source, with a peak output of 200 V, is connected to a 50-W resistor. What is the rate of energy dissipated due to heat in the resistor? 200 W 400 W 566 W 800 W

The AC EMF in this electric circuit is described by the following equation: E = 15Ve(20)t What is the average power (in W) supplied by the EMF? 10 mF M 252 252 000 100 mH

The AC EMF in this electric circuit is described by the following equation: E = 40Ve¹(20)t What is the average power (in W) supplied by the EMF to the electric circuit? 12.5 mF 252 25 mF X 156.89 ele 100 mH

The AC EMF in this electric circuit is described by the following equation: E = 30Ve¹(20)t What is the average power (in W) supplied by the EMF to the electric circuit? 10 mF X 3Ω 112.43 2Ω 000 100 mH

A power transmission line is used to transmit 100 kW of power at a voltage of 10 kV with a loss of 1 kW. If the voltage is increased to 200 kV, what is power loss to transmit the same amount of power?

Alternating current (AC), rather than direct current (DC), is used for the distribution of electric power. Answer true or false. True DC transformers are useful for transmission of electric power. False Edison promoted the use of DC. True Edison opposed the use of AC. True Transformers cannot change the voltage for DC. True Transformers can change the voltage for AC. False Edison opposed the use of DC.

Why we use AC for power transmission over long distances?

A 115-W light bulb operates on an effective ac voltage of 110 V. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part.  What is the effective current through the light bulb?