The rheostat can adjust generator characteristics, dim lights, and start or control the speed of motors. Its resistance element can be a metal wire or ribbon, carbon, or a conducting liquid, depending on the application. Does adding a resistor decrease voltage? If I add in a resistor to a circuit,Read More →
A Voltage Optimiser is a simple yet effective way of reducing your energy costs and cut down on your carbon emissions. For the average energy consumer, the ease of installation and the short payback time, is enough reason to invest in this smart bit of tech. Does a voltage regulatorRead More →
Typically, the forward voltage of an LED is between 1.8 and 3.3 volts. It varies by the color of the LED. A red LED typically drops around 1.7 to 2.0 volts, but since both voltage drop and light frequency increase with band gap, a blue LED may drop around 3Read More →
The most common type of voltage from a central heating and/or cooling system is 24 volts (24Vac). The old thermostat may say somewhere on the thermostat that it is for 24 volt (24Vac) or maximum 30 volts (30Vac). If you see 120 Vac or 240 Vac on the thermostat, aRead More →
A dimmer switch can be installed anywhere that an existing on or off switch is in place. Replacing the current toggle switch with a dimmer switch will allow you to change the lights’ brightness, so long as you are using a light bulb that is compatible with the dimmer youRead More →
Voltmeter is always connected in parallel to a circuit. Since Galvanometer is a very sensitive instrument, therefore it can not measure high potential difference. In order to convert a Galvanometer into voltmeter, a very high resistance known as “series resistance” is connected in series with the galvanometer…. What does aRead More →
The voltage should read a minimum of 13 volts. A good alternator should put out between **13.5-14.5 volts. Stress test the alternator – Place a load on the alternator by turning on the headlights, the radio and the air conditioning. The voltage should remain high with these circuits on. WhatRead More →
We say that in capacitive circuit the voltage and current are out of phase. Current is 90 (degrees) ahead of voltage. When voltage and current are in phase in an AC circuit the? When capacitors or inductors are involved in an AC circuit, the current and voltage do not peakRead More →
The alternating voltage is generated in two ways. By rotating the coil inside the uniform magnetic field at constant speed. By rotating the magnetic field around the stationary coil at the constant speed. What is an alternating voltage? noun Electricity. a voltage that reverses direction in regular cycles. What isRead More →
Voltage Optimisation is an energy saving technology that is used to regulate, clean and condition the incoming power supply in order to reduce the voltage supplied to the optimum level for the on-site electrical equipment and appliances. Do voltage Regulators Save Money? A voltage regulator is usually a more expensiveRead More →