Chapter 4 – Magnetic Effect of Current and Moving Charges

A galvanometer having internal resistance 10Ω requires 0.01 A for a full scale deflection. To convert this galvanometer to a voltmeter of full-scale deflection at 120 V, we need to connect a resistance of A galvanometer having internal resistance 10Ω requires 0.01 A for a full scale deflection. To convert this galvanometer to a voltmeter [...]

What is the value of shunt resistance required to convert a galvanometer of resistance 100 Ω into an ammeter of range 1 A ? Given : Full scale deflection of the galvanometer is 5 mA What is the value of shunt resistance required to convert a galvanometer of resistance 100 Ω into an ammeter of [...]

The resistance of a galvanometer is 2.5Ω and it requires 50mA for full scale deflection. The value of shunt resistance required to convert it into an ammeter of range 0 to 5 A is The resistance of a galvanometer is 2.5Ω and it requires 50mA for full scale deflection. The value of shunt resistance required [...]

The range of voltmeter of resistance 300Ω is 5V. The resistance to be connected to convert it into an ammeter of range 5A is The range of voltmeter of resistance 300Ω is 5V. The resistance to be connected to convert it into an ammeter of range 5A is November 26, 2021 Category: Chapter 4 - [...]

A 10 A ammeter has a resistance of 0.09 Ω. What resistance of the shunt will enable it to read up to 100 A? A 10 A ammeter has a resistance of 0.09 Ω. What resistance of the shunt will enable it to read up to 100 A? November 26, 2021 Category: Chapter 4 - [...]

A circular coil of diameter 7 cm has 24 turns of wire carrying current of 0.75 A. The magnetic moment of the coil is A circular coil of diameter 7 cm has 24 turns of wire carrying current of 0.75 A. The magnetic moment of the coil is November 26, 2021 Category: Chapter 4 - [...]

A current carrying loop is free to turn in a uniform magnetic field. The loop will then come into equilibrium when its plane is inclined at. A current carrying loop is free to turn in a uniform magnetic field. The loop will then come into equilibrium when its plane is inclined at. November 26, 2021 [...]

Two particles, each of mass m and charge q, are attached to the two ends of a light rigid rod of length 2R. The rod is rotated at constant angular speed about a perpendicular axis passing through its centre. The ratio of the magnitudes of the magnetic moment of the system and its angular momentum [...]

The radius of a circular loop is r . A current i is flowing in it. The equivalent magnetic moment will be The radius of a circular loop is r . A current i is flowing in it. The equivalent magnetic moment will be November 26, 2021 Category: Chapter 4 - Magnetic Effect of Current [...]

A galvanometer has resistance of 75 ohm and experiences a full scale deflection for 0.5 mA current. What is the value of resistance to be connected to it in order to convert it into a voltmeter to read upto 1 volt potential difference ? An electron moving around the nucleus with an angular momentum l [...]