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ummmmm... put it in series.

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When an AC voltage is being measured across a 15-ohm resistor which is carrying a current of 12 amps the selector switch should be set to the AC voltage position of volts.?

When measuring AC voltage across a 15-ohm resistor with a current of 12 amps, the multimeter's selector switch should indeed be set to the AC voltage position. This setting ensures that the meter can accurately measure the alternating voltage across the resistor. The voltage can be calculated using Ohm's Law (V = IR), resulting in a voltage of 180 volts (V = 12 A * 15 Ω). Make sure the multimeter is rated for the expected voltage level to ensure safety and accuracy.


What working of resistor?

The main power producers in an electrical system are the battery and alternator. The alternator puts 14 volts of alternating current into the electrical system and resistors. The resistors only allow a fraction of the AC voltage produced to reach the systems' sensitive components


How a ballast resistor convert DC into ac?

A resistor, by itself, can not convert DC into AC.


How is low voltage derived from a mains supply?

Low voltage is derived from a mains supply using a transformer, which steps down the high voltage alternating current (AC) from the mains to a lower voltage level. The transformer operates on the principle of electromagnetic induction, where the primary winding receives the mains voltage, inducing a lower voltage in the secondary winding. Additionally, rectification may be used to convert the AC to direct current (DC) if needed for specific applications. This process ensures that the voltage is safe for use in residential and commercial electrical systems.


Why capacitor is connected in voltage divider emitter bias?

In a voltage divider emitter bias configuration, a capacitor is often connected in parallel with the emitter resistor to stabilize the biasing conditions. This capacitor provides AC coupling, allowing AC signals to pass while blocking DC, which helps maintain a consistent operating point by preventing variations in the emitter voltage due to signal fluctuations. Additionally, it improves the amplifier's frequency response by bypassing the emitter resistor for AC signals, effectively enhancing gain at higher frequencies.

Related Questions

What is a LDR dependent AC dimmer?

The LDR dependent AC dimmer is a Light Dependent Resistor which works by chopping off the parts of the AC voltage.


When an AC voltage is being measured across a 15-ohm resistor which is carrying a current of 12 amps the selector switch should be set to the AC voltage position of volts.?

When measuring AC voltage across a 15-ohm resistor with a current of 12 amps, the multimeter's selector switch should indeed be set to the AC voltage position. This setting ensures that the meter can accurately measure the alternating voltage across the resistor. The voltage can be calculated using Ohm's Law (V = IR), resulting in a voltage of 180 volts (V = 12 A * 15 Ω). Make sure the multimeter is rated for the expected voltage level to ensure safety and accuracy.


Is tranformer used to increase or decrease AC voltage?

The function of any transformer is to change one AC voltage value to another AC voltage value. A step down transformer will transform a higher AC voltage to a lower AC voltage. A step up transformer will transform a lower AC voltage to a higher AC voltage. The transmission of electrical power uses both of these types of transformers. From the generation station the voltage is stepped up to a very high transmission voltage and at the end of the transmission line it is stepped down to a voltage that consumers can utilize.


What is the function of step-down transformers?

The function of any transformer is to change one AC voltage value to another AC voltage value. A step down transformer will transform a higher AC voltage to a lower AC voltage. A step up transformer will transform a lower AC voltage to a higher AC voltage. The transmission of electrical power uses both of these types of Transformers. From the generation station the voltage is stepped up to a very high transmission voltage and at the end of the transmission line it is stepped down to a voltage that consumers can utilize.


What is the circuit which converts high voltage to low voltage?

You can use a step-down transformer, you can use an inverter, you can use a switching regulator, you can use a simple series regulator, you can use a zener diode with a resistor, or you can use a simple series resistance. It all depends on your voltage, power, and regulation requirements, and on whether or not the input and/or output is AC or DC.


What value of resistor would take you from 18v ac to 3.3v ac?

sorry - no can do. The value of a resistor is dependent upon the amount of current flowing through it. To drop the a.c. voltage as you have stated would require a drop-down transformer.


Can you use a 12v halogen bulb with a 6v AC adapter - wattage is the same?

No, you cannot use a 12v halogen bulb with a 6v AC adapter. The voltage of the bulb must match the voltage of the adapter for them to work properly. Using a higher voltage bulb with a lower voltage adapter can cause the bulb to burn out or potentially damage the adapter.


Ac adapter is it ok to use lower voltage 19v 4.74a ac adapter has died. Can I use a spare I have in the mean time it's output is 12v and 5a?

not unless you want to fry your electronics


What working of resistor?

The main power producers in an electrical system are the battery and alternator. The alternator puts 14 volts of alternating current into the electrical system and resistors. The resistors only allow a fraction of the AC voltage produced to reach the systems' sensitive components


How a ballast resistor convert DC into ac?

A resistor, by itself, can not convert DC into AC.


When an AC voltage is being measured across a 15 resistor which is carrying a current of 12 amps the selector switch should be set to the AC voltage position of 2 volts 200 volts 20 volts 1000 volts?

Two Hundred


Can we produce electricity from lightning?

No. Lightning is a DC discharge of short duration at a very high voltage. To be useful for commercial production it has to be a continuousness alternating current (AC) supply of voltage. Only AC supplies can be manipulated to be boosted to a higher voltage for transmission and then lowered for use by transformation to lower home voltages.