Moving Coil Galvanometer Quiz

What is the principle of a moving coil galvanometer?

• Conversion of electrical energy into mechanical energy.

• Measurement of electric current using a magnetic field.

• Interaction between magnetic field and electric current

• Generation of electric current through magnetic induction.

Explain the construction of a moving coil galvanometer.

• A moving coil galvanometer consists of a square coil of wire suspended between the poles of a permanent magnet.

• A moving coil galvanometer consists of a circular coil of wire suspended between the poles of a permanent magnet.

• A moving coil galvanometer consists of a triangular coil of wire suspended between the poles of a permanent magnet.

• A moving coil galvanometer consists of a rectangular coil of wire suspended between the poles of a permanent magnet.

What are the applications of a moving coil galvanometer?

• Measuring small currents, detecting and measuring magnetic fields, and as a component in instruments like ammeters and voltmeters.

• Measuring resistance, detecting and measuring sound waves, and as a component in instruments like hygrometers.

• Measuring voltage, detecting and measuring temperature, and as a component in instruments like barometers.

• Measuring large currents, detecting and measuring electric fields, and as a component in instruments like thermometers.

What is the difference between an ammeter and a voltmeter?

• An ammeter measures voltage, while a voltmeter measures current.

• An ammeter measures resistance, while a voltmeter measures capacitance.

• An ammeter measures power, while a voltmeter measures energy.

• An ammeter measures current, while a voltmeter measures voltage.

How does a moving coil galvanometer work as an ammeter?

• By connecting a low resistance shunt in series with the coil.

• By connecting a low resistance shunt in parallel with the coil.

• By connecting a high resistance shunt in parallel with the coil.

• By connecting a high resistance shunt in series with the coil.

How does a moving coil galvanometer work as a voltmeter?

• By connecting a low resistance in series with it.

• By connecting a capacitor in parallel with it.

• By connecting a transformer in series with it.

• By connecting a high resistance in series with it

What are the advantages of using a moving coil galvanometer?

• Low sensitivity, inaccurate measurement of small currents, high power consumption, and narrow frequency response.

• Low sensitivity, accurate measurement of large currents, high power consumption, and narrow frequency response.

• High sensitivity, accurate measurement of small currents, high power consumption, and narrow frequency response.

• High sensitivity, accurate measurement of small currents, low power consumption, and wide frequency response.

What are the limitations of a moving coil galvanometer?

• Limited accuracy, limited durability, and limited portability.

• Limited precision, limited stability, and limited response time.

• Limited resolution, limited linearity, and limited robustness.

• Limited sensitivity, limited range of measurement, and susceptibility to external magnetic fields.

Explain the working principle of an ammeter.

• An ammeter measures electric current using the principle of electromagnetic induction.

• An ammeter measures electric current using the principle of static electricity.

• An ammeter measures electric current using the principle of gravitational force.

• An ammeter measures electric current using the principle of thermal conduction.

Explain the working principle of a voltmeter.

• A voltmeter measures the voltage or potential difference between two points in an electrical circuit by drawing a small amount of current from the circuit and measuring it.

• A voltmeter measures the power consumption of a circuit by measuring the voltage and current simultaneously.

• A voltmeter measures the resistance of a circuit by applying a small amount of voltage and measuring the resulting current.

• A voltmeter measures the current flowing through a circuit by drawing a small amount of voltage from the circuit and measuring it.