When a coil is connected to a 100V DC supply?

When a coil is connected to a 100 V D.C. supply, the current is 2 A. When the same coil is connected to A.C. source E=100√2sinωt, the current is 1 A. Find the inductive reactance used in the circuit.

Is 100V AC or DC?

Single-Phase vs. Three-Phase Power Supplies

Does AC have higher voltage than DC?

In short, high voltages are more economical for transmitting power, and AC voltage is much easier to raise and lower, so that AC is used in most large-scale power distribution systems.

Which AC voltage value will produce the same amount of heat as a DC voltage when applied to the same resistance?

The RMS or root-mean-square voltage of an AC waveform is equal to the DC voltage that would produce the same amount of heat in a resistive load. For example, an incandescent light bulb would glow equally brightly when fed 120V DC or 120V RMS AC. DC and AC are obviously different, but there is a way to compare the two.

What does 230vac mean?

Voltage in the electrical network in Europe, Russia, Australia, China, Africa, UAE, some parts of South America and other countries. Technically it means 220 to 240V AC (alternating current), 50 Hz. Different countries use different types of power sockets and plugs.

What does 250vac mean?

So, in the example below the maximum amp rating for this switch at 250 volts AC (VAC) is 10 amps; the maximum amp rating at 125 volts AC for the same switch is 15 amps. This rating reflects the amount of current the switch contacts can handle at the moment the device is turned on.

Does AC Have High Voltage?

Is it AC or DC? – Quora. Both AC and DC electrical current can move at high voltages, which is a big advantage because of I^2 R losses (Ohm’s Law) – the higher the voltage, the lower the current, and therefore the smaller the wire has to be-a big deal for moving lots of energy long distances.

Does a transformer change AC to DC?

Transformers do not pass direct current (DC), and can be used to take the DC voltage (the constant voltage) out of a signal while keeping the part that changes (the AC voltage). In the electrical grid transformers are key to changing the voltages to reduce how much energy is lost in electrical transmission.