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firstly a galvanometer instrument measures very small amounts of current flow
of a D,C, nature / type .
an a.c. type circuit is likely to be of a high magnitude , such that it would render the instrument unusable and dangerous to the operator .
also a galvanometer by design is known as a moving coil type meter ,
if an ac signal were to be connected to this, the rate of change of the ac signal voltage would be so fast / frequent that the user would be unaware that the signal is currently changing
What else can I help you with?
What can be meausured with a galvanometer?
A galvanometer is used to measure small currents in electrical circuits. It can detect the presence and direction of current flow in a circuit, making it useful for various applications such as testing circuits, monitoring power consumption, and measuring the output of sensors.
What is the function of an AC transistor in electronic circuits?
An AC transistor in electronic circuits is used to amplify and control the flow of alternating current (AC) signals. It acts as a switch or amplifier to regulate the voltage and current in the circuit, allowing for the manipulation and processing of AC signals for various applications.
What does galvanometer measures?
Electrical current. Invented by the Italian physiologist, Luigi Galvani.
Does galvanometer have polarity?
No, a galvanometer does not have polarity. It is a device used to detect and measure small electric currents. The deflection of the needle in a galvanometer indicates the presence and direction of the current but not the polarity.
Does a galvanometer measure small objects?
No, a galvanometer is a device used to detect and measure small electric currents. It is not typically used to measure small objects.
Why DC ammeter or voltmeter is not used in AC circuits?
Short answer, because it is designed for DC, not AC.In AC, the current goes back and forth all the time; the average current is zero. And that's what a galvanometer that is not especially designed for AC would show.
What can be meausured with a galvanometer?
A galvanometer is used to measure small currents in electrical circuits. It can detect the presence and direction of current flow in a circuit, making it useful for various applications such as testing circuits, monitoring power consumption, and measuring the output of sensors.
Does the galvanometer measures AC and DC current?
It is used to detect very small DC currents only. For AC signals Detectors are used.
Can moving coil galvanometer be used to detect ac in a circuit give reason?
Moving coil galvanometer is used to detect unknown resitance of the both ac or dc circuits :)deepak instrumentation engineerAnswerA 'galvanometer' is simply an instrument that detects and measures small currents; 'moving coil' describes its operating principle. A moving-coil galvanometer is a d.c. instrument; if subject to a.c., then it will simply vibrate as it will not be able to respond the the frequency (unless the frequency is very low, in which case, it will sweep back and forth in step with that frequency).The moving-coil principle is applied to other instruments, and can be used in the construction of multimeters. In the case of a multimeter, a rectifier circuit is incorporated so that it can be used to measure a.c. currents and voltages.
Transformer are used in circuits containing both dc and ac?
No transformers only work with AC.
What type of capacitor is often used in power-supply circuits to filter the rectified AC?
The electrolytic capacitor is most often used in power supply circuits to filter the rectified AC.
Why capacitor is not used in ac circuit?
On the contrary, capacitors ARE used in a.c. circuits.
Does an SCR work on DC or ac?
SCR's are mainly used in AC circuits. They could be used in DC circuits but they then would not be able to turn off. They require the zero crossing of the AC circuit to turn off. Then when positively biased they can be turned back on.
What is the function of an AC transistor in electronic circuits?
An AC transistor in electronic circuits is used to amplify and control the flow of alternating current (AC) signals. It acts as a switch or amplifier to regulate the voltage and current in the circuit, allowing for the manipulation and processing of AC signals for various applications.
What are the main difference while applying kirchoffs laws to dc circuits and ac circuits using meter readings?
For DC circuits, an alebraic sum is required. For AC circuits, a phasor sum is required.
Most commonly used capacitors in electronics circuits are made up of?
pass AC voltages.
Do galvanometer has positive or negative terminals?
Absolutely not. The reason behind is that it shows currents (both ac and dc) which has a desired direction of flow of electrons.. So Galvanometer does not have any electrolytic terminals!!
