Why galvanometer is not used to measure current in a circuit?

Why galvanometer is not used to measure current in a circuit?

The galvanometer is a very sensitive device. Hence, it may get damaged when a strong current is passed through the galvanometer. The galvanometer resistance is larger than the ammeter, if it is connected in series it will reduce the current flow through the circuit.

Why a galvanometer Cannot be used directly as a ammeter What correction has to be made?

A galvanometer shows a full scale deflection with a very small current. Hence a galvanometer can measure limited current. Therefore as such, a galvanometer can not be used as an ammeter, which can measure the given large current.

Why a galvanometer Cannot be directly used as voltmeter?

Since Galvanometer is a very sensitive device. If a low value of current pass through the galvanometer, then it may burn of explode. Therefore, it is converted into voltmeter by connecting the coil of the galvanometer with a low resistance in parallel combination ammeter is made.

Can a galvanometer be used for measuring current?

galvanometer, instrument for measuring a small electrical current or a function of the current by deflection of a moving coil. The deflection is a mechanical rotation derived from forces resulting from the current.

Why galvanometer is used in circuit?

It is an instrument used to determine the magnitude of the current flowing in the electrical circuit. It is the instrument, which is useful for the detection of the strength as well as the direction of small current flow in a circuit.

Why galvanometer is a sensitive device?

Galvanometer is a sensitive device used to detect very low current. Its working is based on the principle that a coil placed in a uniform magnetic field experiences a torque when an electric current is set up in it. The deflection of the coil is determined by a pointer attached to it, moving on the scale.

Can you use galvanometer instead of ammeter?

Solution: Yes, we can use a galvanometer as an ammeter in the circuit. We can convert it into an ammeter. For this conversion, a low resistance known as shunt resistance has to be connected in parallel to the galvanometer.

Why is galvanometer a sensitive device?

Why galvanometer is not used in AC Bridge?

In AC bridge galvanometer is not used because the rotating torque is dependent on the average current that is passing through the coils of a galvanometer. Also, the average AC current passing through the AC bridge will be zero and there will not be any deflection.

Why can galvanometer measure AC current?

Ordinary galvanometers cannot be used for the measurement of an current (AC), because the alternation of the current would produce deflection in both directions. An of the galvanometer, however, called an electrodynamometer, can be used to measure alternating currents by means of electromagnetic deflection.

How does a galvanometer measure electric current?

A galvanometer works by deflecting a pointer in response to an electric current flowing through a coil in a constant magnetic field. They were the first instruments used to detect and measure small amounts of current.