CRAO is considered a stroke of the eye. Studies show that about two-thirds of patients have underlying high blood pressure and one-fourth of patients will have significant carotid artery disease (plaque with narrowing of the artery lining), cardiac valvular disease or diabetes.
Electrical pressure is measured in volts, or voltage. All electrical devices are rated for specific voltages. Most devices and small appliances in a home are rated for 120 volts, while high-voltage appliances, such as electric dryers, ranges, and many baseboard heaters, are rated for 240 volts.
What Uses Watts in Your Home. Electricity usage is calculated in kilowatt-hours. A kilowatt-hour is 1,000 watts used for one hour. As an example, a 100-watt light bulb operating for ten hours would use one kilowatt-hour. How to calculate electric usage cost: 1. Volts x Amps = Watts 2. Watts Ã· 1,000 = Kilowatts (kW) 3. Kilowatts (kW) x Hours of Use = Kilowatt Hours (kWh) 4. Kilowatt Hours (kWh) x kWh rate = Cost of Usage 5. Add TVA Power Cost Adjustment charge per kWh. Below are some examples of electrical appliances found in most homes.