Eye Strain. When you stare at screens all day, your eyes can get tired. Take a break with the 20/20/20 rule. Look at an object at least 20 feet away for 20 seconds every 20 minutes, says Ivan Schwab, MD, a spokesman for the American Academy of Ophthalmology.
Once you have the dial on your volt meter set to measure voltage, simply touch the black lead to the negative (-) terminal on your battery and the red lead to the positive ( ) terminal on your battery.
Voltage is meaured using a voltmeter. Some types of voltmeter have a pointer on a dial, but most have a digital readout. To measure the voltage across a component in a circuit, you must connect the voltmeter in parallel with it.Using a voltmeter to measure the voltage across a lamp. You can measure the voltage across a cell or battery.The more cells, the bigger the voltage.o measure the voltage across a component in a circuit, you must connect the voltmeter in parallel with it. Using a voltmeter to measure the voltage across a lamp. You can measure the voltage across a cell or battery. The more cells, the bigger the voltage.