To measure the value of a resistor, apply a voltage and measure the voltage across the resistor and the current through the resistor. Use Ohm's law: Resistance equals Voltage divided by Current. Start with a small voltage and increase gradually until a reading is obtained, but be careful that the power dissipation (watts = volts times amperes) of the resistor is not exceeded. Simpler solution: Use an ohmeter.
To measure ripple AC voltage, use an oscilloscope or a true RMS multimeter. Connect the oscilloscope probes across the output where the ripple voltage is present, ensuring proper grounding. Set the oscilloscope to an appropriate time base to visualize the waveform, and measure the peak-to-peak voltage to determine the ripple magnitude. For a multimeter, select the AC voltage setting and connect the leads across the same output to get a reading of the ripple voltage.
beacause ammeter is use to measure the current not to measure the voltage
To measure high voltage use suitable instrument transformer (potential transformer) Very carefully. It can kill you. The higher the voltage the more the danger or arcing over even when two conductors are not touching. Voltage meters are rated and the rating should not be exceeded. Depending on the voltage you will need the proper meter and a high voltage probe rated for the voltage you are measuring. If you don't know what you are doing, don't mess with high voltage. Leave to the pros.
Semiconductor resistance depends on temperature. So, you can use a shunt resistor to measure semiconductor voltage with a given current and, then, obtain temperature.
use a metals further away from each other on the reactivity series (I think). but using more electrolytes (more fruits i.e. 4 lemons instead of 1 etc) will definitely give a higher voltage. the more fruit, the bigger the voltage. :D
Believe it or not, THE VOLT.
A Voltmeter.
it is use to measure electric potential (voltage).
you use a miltimeter and dissimilar metals
Just set to AC or DC volts and probe the two points you wish to measure voltage across.
To measure voltage accurately in an electrical circuit, use a digital multimeter set to the voltage range of the circuit. Connect the multimeter's probes across the component or points where you want to measure the voltage. Read the displayed voltage value on the multimeter's screen for an accurate measurement.
A volt meter is use to measure the voltage of the circuit.
it is use to measure electric potential (voltage).
Use a voltmeter with a high input impedance and measure at the source the voltage.
To measure voltage accurately in an electrical circuit, use a digital multimeter set to the voltage measurement range. Connect the multimeter's probes across the component or points where you want to measure the voltage. Read the displayed voltage value on the multimeter's screen. Make sure to select the appropriate voltage range on the multimeter to get an accurate measurement.
You can measure the voltage of a light bulb by using a multimeter set to the voltage setting. Simply touch the positive and negative probes of the multimeter to the base of the light bulb where it connects to the socket to measure the voltage across the bulb.